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CVE-2026-16389

Incorrect boundary conditions, integer overflow in the Libraries component in NSS

9.8 CriticalFix available

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.56%Up 0.4 points since Jul 22, 2026
90%50%10%1%

What each source reports

CVE List Score used 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Record
CVE-2026-16389
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-190
Updated
2026-11-02
EUVDEUVD-2026-46226 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Record
EUVD-2026-46226
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-52h6-3xqw-4r8v 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This...

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153.

Record
GHSA-52h6-3xqw-4r8v
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-190
Updated
2026-11-02
NVD 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Record
CVE-2026-16389
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-190
Updated
2026-11-02
OSVBELL-CVE-2026-16389 9.8
Record
BELL-CVE-2026-16389
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2026-16389 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Record
DEBIAN-CVE-2026-16389
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
Show 11 moreShow less
OSVOESA-2026-3502 9.8

nss security update

Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509 v3 certificates, and other security standards.

Security Fix(es):

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.(CVE-2026-16389)

Record
OESA-2026-3502
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2026-16389 9.8

Incorrect boundary conditions, integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 153 and Thunderbird 153.

Record
UBUNTU-CVE-2026-16389
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVCLSA-2026-1787115646 No score

thunderbird: Fix of 48 CVEs

  • update to 153.0.1 ESR (MFSA 2026-71)
  • drop six patches made obsolete by 153: P02 firefox-gcc-build (fixed upstream), P15 build-system-nss + P16 build-tb-system-nss (both patch third_party/rust/neqo-crypto, a directory 153 no longer has), P19 build-min-lexical, P52 exceptionHandled-for-IO-error-processhandler and P111 av1-else-condition-add (all upstreamed)
  • Source404 nss-3.126.0-1.el9.src.rpm is a locally rebranded Fedora artifact (md5 1fc9b7b02f848fc99e06d5a8680ea5a3), rebuilt from Fedora rawhide dist-git commit 43cbb021d9886d5abc3d4cb546d022929b9bb1dc (2026-07-29) whose own NVR is nss-3.126.0-1; there is no public nss-3.126.0-1.el9, so the .el9 disttag reflects the build target, not an upstream vendor NVR. The EL9-vs-Fedora patch disposition (Alma c9 carries 29 downstream patches, Fedora 3.126 carries 14) is tracked as a follow-up; NSS stays private to thunderbird either way
  • P103 mozilla-bmo1504834-part1 loses its gfx/2d/Types.h hunk: that hunk rewrote an #if MOZ_LITTLE_ENDIAN()/#elif MOZ_BIG_ENDIAN() block which 153 replaced with A8R8G8B8_UINT32 = std::endian::native == std::endian::little ? B8G8R8A8 : A8R8G8B8, so it had nothing left to apply; on little-endian that ternary yields B8G8R8A8, which is what the hunk forced. The surviving DrawTargetSkia.cpp kARGBAlphaOffset = 0 is a pre-existing Fedora-inherited override that does NOT match the upstream little-endian value there (that ternary yields 3), but it sits inside #ifdef DEBUG (gfx/2d/DrawTargetSkia.cpp:154-257) alongside VerifyRGBXFormat/VerifyRGBXCorners, so it is compiled out of release builds entirely and has no release impact on any arch
  • update bundled cbindgen to 0.29.4; Gecko 153 requires >= 0.29.4 and the previous bundle provided 0.27.0
  • update bundled NSS to 3.126.0 (with NSPR 4.39); Gecko 153 requires nss >= 3.125 and no RHEL/AlmaLinux stream ships one (9.8 still has 3.112). Rebased on the Fedora nss packaging, which tracks 3.126 with a patch set that applies cleanly; the RHEL 3.112 patch set does not survive the jump. NSS stays private to thunderbird under /usr/lib64/thunderbird/bundled as before -- the platform NSS is untouched. Note Source403 (EL8 path) still carries 3.112.
  • fix the unsorted openssl-backend SOURCES list in comm/third_party/rnp/moz.build; mozbuild requires SOURCES to be appended in sorted order and upstream only exercises the botan backend, so the bug is invisible to them
  • CVE-2026-16364: Incorrect boundary conditions in the Audio/Video: Playback component
  • CVE-2026-16365: Privilege escalation in the DOM: Workers component
  • CVE-2026-16366: Privilege escalation in the DOM: Navigation component
  • CVE-2026-16367: Sandbox escape due to invalid pointer in the Disability Access APIs component
  • CVE-2026-16370: Mitigation bypass in the DOM: Networking component
  • CVE-2026-16372: Privilege escalation in the DOM: Content Processes component
  • CVE-2026-16376: Denial-of-service in the Graphics: WebGPU component
  • CVE-2026-16378: Other issue in the DOM: Copy & Paste and Drag & Drop component
  • CVE-2026-16380: Mitigation bypass in the Networking component
  • CVE-2026-16382: Mitigation bypass in the DOM: Service Workers component
  • CVE-2026-16384: Information disclosure due to uninitialized memory in the Graphics: WebGPU component
  • CVE-2026-16385: Information disclosure due to uninitialized memory in the Graphics: WebGPU component
  • CVE-2026-16386: Information disclosure due to uninitialized memory in the Graphics: WebGPU component
  • CVE-2026-16388: Sandbox escape in the DOM: Networking component
  • CVE-2026-16389: Incorrect boundary conditions, integer overflow in the Libraries component in NSS
  • CVE-2026-16392: JIT miscompilation in the JavaScript Engine: JIT component
  • CVE-2026-16393: Incorrect boundary conditions in the Graphics: WebGPU component
  • CVE-2026-16394: Mitigation bypass in the DOM: Security component
  • CVE-2026-16395: Integer overflow in the…
Record
CLSA-2026-1787115646
Updated
2026-11-02
OSVopenSUSE-SU-2026:11358-1 No score

MozillaFirefox-153.0-1.1 on GA media

These are all security issues fixed in the MozillaFirefox-153.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11358-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:11373-1 No score

firefox-esr-153.0-1.1 on GA media

These are all security issues fixed in the firefox-esr-153.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11373-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21713-1 No score

Security update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen

This update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen fixes the following issues:

Changes in MozillaFirefox:

Firefox Extended Support Release 153.1.0 ESR.

  • Fixed: Various security fixes.

MFSA 2026-77 (bsc#1274867):

  • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
  • CVE-2026-74935 Privilege escalation in the DOM: Networking component
  • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
  • CVE-2026-74937 Use-after-free in the JavaScript: GC component
  • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
  • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
  • CVE-2026-74940 Use-after-free in the Graphics: Text component
  • CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component
  • CVE-2026-74942 Privilege escalation in the Remote Settings Client component
  • CVE-2026-74943 Use-after-free in the Graphics: ImageLib component
  • CVE-2026-74944 Use-after-free in the DOM: Core & HTML component
  • CVE-2026-74945 Information disclosure in the Graphics: Text component
  • CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
  • CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component
  • CVE-2026-74948 Information disclosure in the Graphics component
  • CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
  • CVE-2026-74950 Privilege escalation in the Downloads API component
  • CVE-2026-74953 Privilege escalation in the Networking: Cookies component
  • CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component
  • CVE-2026-74955 Privilege escalation in the Request Handling component
  • CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers component
  • CVE-2026-74957 Mitigation bypass in the Safe Browsing component
  • CVE-2026-74958 Information disclosure in the WebRTC component
  • CVE-2026-74959 Mitigation bypass in the Storage: Cache API component
  • CVE-2026-74960 Site isolation issue in the WebExtensions component
  • CVE-2026-74961 Side-channel in the Web Audio component
  • CVE-2026-74962 Site isolation issue in the Networking: Cookies component
  • CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component
  • CVE-2026-74964 Integer overflow in the Graphics component
  • CVE-2026-74965 Privilege escalation in the Shell Integration component
  • CVE-2026-74966 Information disclosure in the Form Autofill component
  • CVE-2026-74967 Same-origin policy bypass in the Audio/Video: Playback component
  • CVE-2026-74968 Site isolation issue in the Graphics: WebRender component
  • CVE-2026-74969 Use-after-free in the Layout: Text and Fonts component
  • CVE-2026-74970 Site isolation issue in the Graphics component
  • CVE-2026-74971 Information disclosure in the DOM: UI Events & Focus Handling component
  • CVE-2026-74972 Information disclosure in the DOM: Push Subscriptions component
  • CVE-2026-74973 Race condition, use-after-free in the Graphics component
  • CVE-2026-74974 Same-origin policy bypass in the Graphics: ImageLib component
  • CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component
  • CVE-2026-74977 Integer overflow in the Graphics component
  • CVE-2026-74978 Clickjacking issue in the Widget component
  • CVE-2026-74979 Mitigation bypass in the Add-ons Manager component
  • CVE-2026-74981 Site isolation issue in the Audio/Video: Web Codecs component
  • CVE-2026-74982 Denial-of-service in the Widget component
  • CVE-2026-74983 Mitigation bypass in the Data Loss Prevention component
  • CVE-2026-74984 Race condition in the JavaScript Engine component
  • CVE-2026-74985 Privilege escalation in the Enterprise Policies component
  • CVE-2026-74986 Site isolation issue in the CSS Parsing and Computation component *…
Record
openSUSE-SU-2026:21713-1
Updated
2026-11-02
OSVSUSE-SU-2026:23411-1 No score

Security update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen

This update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen fixes the following issues:

Changes in MozillaFirefox:

Firefox Extended Support Release 153.1.0 ESR.

  • Fixed: Various security fixes.

MFSA 2026-77 (bsc#1274867):

  • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
  • CVE-2026-74935 Privilege escalation in the DOM: Networking component
  • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
  • CVE-2026-74937 Use-after-free in the JavaScript: GC component
  • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
  • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
  • CVE-2026-74940 Use-after-free in the Graphics: Text component
  • CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component
  • CVE-2026-74942 Privilege escalation in the Remote Settings Client component
  • CVE-2026-74943 Use-after-free in the Graphics: ImageLib component
  • CVE-2026-74944 Use-after-free in the DOM: Core & HTML component
  • CVE-2026-74945 Information disclosure in the Graphics: Text component
  • CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
  • CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component
  • CVE-2026-74948 Information disclosure in the Graphics component
  • CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
  • CVE-2026-74950 Privilege escalation in the Downloads API component
  • CVE-2026-74953 Privilege escalation in the Networking: Cookies component
  • CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component
  • CVE-2026-74955 Privilege escalation in the Request Handling component
  • CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers component
  • CVE-2026-74957 Mitigation bypass in the Safe Browsing component
  • CVE-2026-74958 Information disclosure in the WebRTC component
  • CVE-2026-74959 Mitigation bypass in the Storage: Cache API component
  • CVE-2026-74960 Site isolation issue in the WebExtensions component
  • CVE-2026-74961 Side-channel in the Web Audio component
  • CVE-2026-74962 Site isolation issue in the Networking: Cookies component
  • CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component
  • CVE-2026-74964 Integer overflow in the Graphics component
  • CVE-2026-74965 Privilege escalation in the Shell Integration component
  • CVE-2026-74966 Information disclosure in the Form Autofill component
  • CVE-2026-74967 Same-origin policy bypass in the Audio/Video: Playback component
  • CVE-2026-74968 Site isolation issue in the Graphics: WebRender component
  • CVE-2026-74969 Use-after-free in the Layout: Text and Fonts component
  • CVE-2026-74970 Site isolation issue in the Graphics component
  • CVE-2026-74971 Information disclosure in the DOM: UI Events & Focus Handling component
  • CVE-2026-74972 Information disclosure in the DOM: Push Subscriptions component
  • CVE-2026-74973 Race condition, use-after-free in the Graphics component
  • CVE-2026-74974 Same-origin policy bypass in the Graphics: ImageLib component
  • CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component
  • CVE-2026-74977 Integer overflow in the Graphics component
  • CVE-2026-74978 Clickjacking issue in the Widget component
  • CVE-2026-74979 Mitigation bypass in the Add-ons Manager component
  • CVE-2026-74981 Site isolation issue in the Audio/Video: Web Codecs component
  • CVE-2026-74982 Denial-of-service in the Widget component
  • CVE-2026-74983 Mitigation bypass in the Data Loss Prevention component
  • CVE-2026-74984 Race condition in the JavaScript Engine component
  • CVE-2026-74985 Privilege escalation in the Enterprise Policies component
  • CVE-2026-74986 Site isolation issue in the CSS Parsing and Computation component *…
Record
SUSE-SU-2026:23411-1
Updated
2026-11-02
OSVSUSE-SU-2026:23590-1 No score

Security update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen

This update for MozillaFirefox, mozilla-nss, mozilla-nspr, rust-cbindgen fixes the following issues:

Changes in MozillaFirefox:

Firefox Extended Support Release 153.1.0 ESR.

  • Fixed: Various security fixes.

MFSA 2026-77 (bsc#1274867):

  • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
  • CVE-2026-74935 Privilege escalation in the DOM: Networking component
  • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
  • CVE-2026-74937 Use-after-free in the JavaScript: GC component
  • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
  • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
  • CVE-2026-74940 Use-after-free in the Graphics: Text component
  • CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component
  • CVE-2026-74942 Privilege escalation in the Remote Settings Client component
  • CVE-2026-74943 Use-after-free in the Graphics: ImageLib component
  • CVE-2026-74944 Use-after-free in the DOM: Core & HTML component
  • CVE-2026-74945 Information disclosure in the Graphics: Text component
  • CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
  • CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component
  • CVE-2026-74948 Information disclosure in the Graphics component
  • CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
  • CVE-2026-74950 Privilege escalation in the Downloads API component
  • CVE-2026-74953 Privilege escalation in the Networking: Cookies component
  • CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component
  • CVE-2026-74955 Privilege escalation in the Request Handling component
  • CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers component
  • CVE-2026-74957 Mitigation bypass in the Safe Browsing component
  • CVE-2026-74958 Information disclosure in the WebRTC component
  • CVE-2026-74959 Mitigation bypass in the Storage: Cache API component
  • CVE-2026-74960 Site isolation issue in the WebExtensions component
  • CVE-2026-74961 Side-channel in the Web Audio component
  • CVE-2026-74962 Site isolation issue in the Networking: Cookies component
  • CVE-2026-74963 Same-origin policy bypass in the Networking: Cookies component
  • CVE-2026-74964 Integer overflow in the Graphics component
  • CVE-2026-74965 Privilege escalation in the Shell Integration component
  • CVE-2026-74966 Information disclosure in the Form Autofill component
  • CVE-2026-74967 Same-origin policy bypass in the Audio/Video: Playback component
  • CVE-2026-74968 Site isolation issue in the Graphics: WebRender component
  • CVE-2026-74969 Use-after-free in the Layout: Text and Fonts component
  • CVE-2026-74970 Site isolation issue in the Graphics component
  • CVE-2026-74971 Information disclosure in the DOM: UI Events & Focus Handling component
  • CVE-2026-74972 Information disclosure in the DOM: Push Subscriptions component
  • CVE-2026-74973 Race condition, use-after-free in the Graphics component
  • CVE-2026-74974 Same-origin policy bypass in the Graphics: ImageLib component
  • CVE-2026-74976 JIT miscompilation in the JavaScript Engine: JIT component
  • CVE-2026-74977 Integer overflow in the Graphics component
  • CVE-2026-74978 Clickjacking issue in the Widget component
  • CVE-2026-74979 Mitigation bypass in the Add-ons Manager component
  • CVE-2026-74981 Site isolation issue in the Audio/Video: Web Codecs component
  • CVE-2026-74982 Denial-of-service in the Widget component
  • CVE-2026-74983 Mitigation bypass in the Data Loss Prevention component
  • CVE-2026-74984 Race condition in the JavaScript Engine component
  • CVE-2026-74985 Privilege escalation in the Enterprise Policies component
  • CVE-2026-74986 Site isolation issue in the CSS Parsing and Computation component *…
Record
SUSE-SU-2026:23590-1
Updated
2026-11-02
OSVSUSE-SU-2026:4140-1 No score

Security update for MozillaFirefox, mozilla-nspr, mozilla-nss, rust-cbindgen

This update for MozillaFirefox, mozilla-nspr, mozilla-nss, rust-cbindgen fixes the following issues:

Changes in MozillaFirefox:

This update ships Firefox Extended Support Release 153.2.0 ESR

  • Fixed: Various security fixes.

MFSA 2026-85 (bsc#1278001):

  • CVE-2026-75874: Sandbox escape in the Remote Settings Client component

  • CVE-2026-84118: Use-after-free in the JavaScript: GC component

  • CVE-2026-84119: Sandbox escape due to use-after-free in the DOM: Navigation component

  • CVE-2026-84120: Use-after-free in the Audio/Video component

  • CVE-2026-84121: Sandbox escape due to use-after-free in the DOM: Security component

  • CVE-2026-84122: Use-after-free in the Audio/Video component

  • CVE-2026-84123: Privilege escalation due to use-after-free in the Graphics: WebGPU component

  • CVE-2026-84124: Use-after-free in the DOM: Core & HTML component

  • CVE-2026-84125: Use-after-free in the DOM: Core & HTML component

  • CVE-2026-74952: Privilege escalation in the Application Update component

  • CVE-2026-84129: Site isolation issue in the DOM: Navigation component

  • CVE-2026-84130: Information disclosure in the Graphics: WebGPU component

  • CVE-2026-84131: Privilege escalation due to invalid pointer in the Graphics component

  • CVE-2026-84132: Information disclosure in the Networking: HTTP component

  • CVE-2026-84133: Site isolation issue in the DOM: Push Subscriptions component

  • CVE-2026-84134: Other issue in the Profile Backup component

  • CVE-2026-84136: Other issue in the DOM: Navigation component

  • CVE-2026-84137: Spoofing issue in the DOM: Core & HTML component

  • CVE-2026-84139: Clickjacking issue in the DOM: Events component

  • CVE-2026-84140: Site isolation issue in the DOM: Navigation component

  • CVE-2026-84141: Integer overflow in the Graphics: ImageLib component

  • CVE-2026-84143: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15

  • CVE-2026-84144: Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2

  • CVE-2026-84145: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40

  • Fixed: Various security fixes.

    MFSA 2026-77 (bsc#1274867)

    • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
    • CVE-2026-74935 Privilege escalation in the DOM: Networking component
    • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
    • CVE-2026-74937 Use-after-free in the JavaScript: GC component
    • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
    • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
    • CVE-2026-74940 Use-after-free in the Graphics: Text component
    • CVE-2026-74941 Privilege escalation in the Graphics: CanvasWebGL component
    • CVE-2026-74942 Privilege escalation in the Remote Settings Client component
    • CVE-2026-74943 Use-after-free in the Graphics: ImageLib component
    • CVE-2026-74944 Use-after-free in the DOM: Core & HTML component
    • CVE-2026-74945 Information disclosure in the Graphics: Text component
    • CVE-2026-74946 Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
    • CVE-2026-74947 Privilege escalation due to invalid pointer in the Graphics component
    • CVE-2026-74948 Information disclosure in the Graphics component
    • CVE-2026-74949 Privilege escalation due to use-after-free in the Graphics: Canvas2D component
    • CVE-2026-74950 Privilege escalation in the Downloads API component
    • CVE-2026-74953 Privilege escalation in the Networking: Cookies component
    • CVE-2026-74954 Information disclosure due to side-channel in the Storage: Cache API component
    • CVE-2026-74955 Privilege escalation in the Request Handling component
    • CVE-2026-74956 Same-origin policy bypass in the DOM: Service Workers …
Record
SUSE-SU-2026:4140-1
Updated
2026-11-02
OSVSUSE-SU-2026:4156-1 No score

Security update for MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss, rust-cbindgen

This update for MozillaFirefox, MozillaFirefox-branding-SLE, mozilla-nspr, mozilla-nss, rust-cbindgen fixes the following issues:

Changes in MozillaFirefox:

Firefox Extended Support Release 153.2.0 ESR

  • Fixed: Various security fixes.

    MFSA 2026-85 (bsc#1278001):

    • CVE-2026-75874: Sandbox escape in the Remote Settings Client component

    • CVE-2026-84118: Use-after-free in the JavaScript: GC component

    • CVE-2026-84119: Sandbox escape due to use-after-free in the DOM: Navigation component

    • CVE-2026-84120: Use-after-free in the Audio/Video component

    • CVE-2026-84121: Sandbox escape due to use-after-free in the DOM: Security component

    • CVE-2026-84122: Use-after-free in the Audio/Video component

    • CVE-2026-84123: Privilege escalation due to use-after-free in the Graphics: WebGPU component

    • CVE-2026-84124: Use-after-free in the DOM: Core & HTML component

    • CVE-2026-84125: Use-after-free in the DOM: Core & HTML component

    • CVE-2026-74952: Privilege escalation in the Application Update component

    • CVE-2026-84129: Site isolation issue in the DOM: Navigation component

    • CVE-2026-84130: Information disclosure in the Graphics: WebGPU component

    • CVE-2026-84131: Privilege escalation due to invalid pointer in the Graphics component

    • CVE-2026-84132: Information disclosure in the Networking: HTTP component

    • CVE-2026-84133: Site isolation issue in the DOM: Push Subscriptions component

    • CVE-2026-84134: Other issue in the Profile Backup component

    • CVE-2026-84136: Other issue in the DOM: Navigation component

    • CVE-2026-84137: Spoofing issue in the DOM: Core & HTML component

    • CVE-2026-84139: Clickjacking issue in the DOM: Events component

    • CVE-2026-84140: Site isolation issue in the DOM: Navigation component

    • CVE-2026-84141: Integer overflow in the Graphics: ImageLib component

    • CVE-2026-84143: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2 and Firefox ESR 140.15

    • CVE-2026-84144: Internally found bugs fixed in Firefox 155 and Firefox ESR 153.2

    • CVE-2026-84145: Internally found bugs fixed in Firefox 155, Firefox ESR 153.2, Firefox ESR 140.15 and Firefox ESR 115.40

    • Fixed: Various security fixes.

    MFSA 2026-77 (bsc#1274867):

    • CVE-2026-74934: Site isolation issue in the Graphics: CanvasWebGL component
    • CVE-2026-74935: Privilege escalation in the DOM: Networking component
    • CVE-2026-74936: Use-after-free in the JavaScript: WebAssembly component
    • CVE-2026-74937: Use-after-free in the JavaScript: GC component
    • CVE-2026-74938: Mitigation bypass in the JavaScript: GC component
    • CVE-2026-74939: Privilege escalation in the DOM: Navigation component
    • CVE-2026-74940: Use-after-free in the Graphics: Text component
    • CVE-2026-74941: Privilege escalation in the Graphics: CanvasWebGL component
    • CVE-2026-74942: Privilege escalation in the Remote Settings Client component
    • CVE-2026-74943: Use-after-free in the Graphics: ImageLib component
    • CVE-2026-74944: Use-after-free in the DOM: Core & HTML component
    • CVE-2026-74945: Information disclosure in the Graphics: Text component
    • CVE-2026-74946: Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component
    • CVE-2026-74947: Privilege escalation due to invalid pointer in the Graphics component
    • CVE-2026-74948: Information disclosure in the Graphics component
    • CVE-2026-74949: Privilege escalation due to use-after-free in the Graphics: Canvas2D component
    • CVE-2026-74950: Privilege escalation in the Downloads API component
    • CVE-2026-74953: Privilege escalation in the Networking: Cookies component
    • CVE-2026-74954: Information disclosure due to side-channel in the Storage: Cache API component
    • CVE-2026-74955: Privilege escalation in the Request Handling component
    • CVE-2026-74956: Same-origin policy bypass in the DOM: Service Workers component
    • CVE-2026-74957: Mitigation bypass in the Safe Browsing…
Record
SUSE-SU-2026:4156-1
Updated
2026-11-02
OSVSUSE-SU-2026:4268-1 No score

Security update for MozillaThunderbird

This update for MozillaThunderbird fixes the following issues:

Mozilla Thunderbird 153.2:

  • fixed: Deleting an Exchange account retained the outgoing server settings
  • fixed: Thunderbird upgrade disabled Settings menu for versions before macOS 13
  • fixed: Windows jump list menu no longer functioned correctly
  • fixed: Security fixes MFSA 2026-88 (bsc#1278001):
  • CVE-2026-84639 Uninitialized memory in MIME parsing
  • CVE-2026-84640 One byte overflow read in mail parser
  • CVE-2026-84641 Information disclosure due to malicious IMAP server response
  • CVE-2026-84637 Calendar invitation attachments could launch local executables
  • CVE-2026-84642 Allowed UNC hostnames for attachments interpreted as a regular expression
  • CVE-2026-75874 Sandbox escape in the Remote Settings Client component
  • CVE-2026-84118 Use-after-free in the JavaScript: GC component
  • CVE-2026-84119 Sandbox escape due to use-after-free in the DOM: Navigation component
  • CVE-2026-84120 Use-after-free in the Audio/Video component
  • CVE-2026-84121 Sandbox escape due to use-after-free in the DOM: Security component
  • CVE-2026-84122 Use-after-free in the Audio/Video component
  • CVE-2026-84123 Privilege escalation due to use-after-free in the Graphics: WebGPU component
  • CVE-2026-84124 Use-after-free in the DOM: Core & HTML component
  • CVE-2026-84125 Use-after-free in the DOM: Core & HTML component
  • CVE-2026-74952 Privilege escalation in the Application Update component
  • CVE-2026-84129 Site isolation issue in the DOM: Navigation component
  • CVE-2026-84130 Information disclosure in the Graphics: WebGPU component
  • CVE-2026-84131 Privilege escalation due to invalid pointer in the Graphics component
  • CVE-2026-84132 Information disclosure in the Networking: HTTP component
  • CVE-2026-84133 Site isolation issue in the DOM: Push Subscriptions component
  • CVE-2026-84134 Other issue in the Profile Backup component
  • CVE-2026-84136 Other issue in the DOM: Navigation component
  • CVE-2026-84137 Spoofing issue in the DOM: Core & HTML component
  • CVE-2026-84139 Clickjacking issue in the DOM: Events component
  • CVE-2026-84140 Site isolation issue in the DOM: Navigation component
  • CVE-2026-84141 Integer overflow in the Graphics: ImageLib component
  • CVE-2026-84143 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15
  • CVE-2026-84144 Internally found bugs fixed in Thunderbird 155 and Thunderbird ESR 153.2
  • CVE-2026-84145 Internally found bugs fixed in Thunderbird 155, Thunderbird ESR 153.2 and Thunderbird ESR 140.15

  • Mozilla Thunderbird 153.1.1

    • fixed: Thunderbird upgrade disabled composition toolbar
    • fixed: Draft was not preserved when encrypted message send failed
    • fixed: Account Hub prompted for calendar credentials after successful login
    • fixed: Thunderbird crash fixes
    • fixed: Folder compaction showed incorrect disk space recovery estimates
    • fixed: Thunderbird failed to launch GPU process

  • Mozilla Thunderbird 153.1

    • fixed: Autoscroll icon was missing directional arrows in scrollable messages
    • fixed: Security fixes MFSA 2026-80 (bsc#1274867):
    • CVE-2026-74934 Site isolation issue in the Graphics: CanvasWebGL component
    • CVE-2026-74935 Privilege escalation in the DOM: Networking component
    • CVE-2026-74936 Use-after-free in the JavaScript: WebAssembly component
    • CVE-2026-74937 Use-after-free in the JavaScript: GC component
    • CVE-2026-74938 Mitigation bypass in the JavaScript: GC component
    • CVE-2026-74939 Privilege escalation in the DOM: Navigation component
    • CVE-2026-74940 Use-after-free in the Graphics: Text component
    • CVE-2026-74941 Privilege escalation in the Graphics:…
Record
SUSE-SU-2026:4268-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
nss
Alpaquita:23
 3.85-r0 up to 3.85-r4
3.85-r4
nss
Alpaquita:25
 3.112-r0 up to 3.114-r2
3.114-r2
nss
Alpaquita:stream
 3.89-r0 up to 3.125-r0
3.125-r0
thunderbird
TuxCare:AlmaLinux:9.2
From an advisory covering 31 CVEs
 before 153.0.1-1.el9_2.alma.1.tuxcare.els1
153.0.1-1.el9_2.alma.1.tuxcare.els1
nss
Debian:12
 before 2:3.87.1-1+deb12u4, plus listed versions
2:3.87.1-12:3.87.1-1+deb12u12:3.87.1-1+deb12u22:3.87.1-1+deb12u3
2:3.87.1-1+deb12u4
nss
Debian:13
 before 2:3.110-1+deb13u4, plus listed versions
2:3.110-12:3.110-1+deb13u12:3.110-1+deb13u22:3.110-1+deb13u3
2:3.110-1+deb13u4
nss
Debian:14
 before 2:3.126-1, plus listed versions
2:3.110-12:3.111-12:3.112-12:3.114-12:3.116-1
Show 7 moreShow less
2:3.117-12:3.119-12:3.120-12:3.121-12:3.123-12:3.123.1-12:3.124-1
2:3.126-1
nss
openEuler:24.03-LTS-SP1
 before 3.94.0-10.oe2403sp1
3.94.0-10.oe2403sp1
nss
openEuler:24.03-LTS-SP3
 before 3.94.0-10.oe2403sp3
3.94.0-10.oe2403sp3
nss
openEuler:24.03-LTS-SP4
 before 3.94.0-10.oe2403sp4
3.94.0-10.oe2403sp4
Show 90 moreShow less
Affected packages
PackageAffectedFixed
nss
openEuler:20.03-LTS-SP4
 before 3.54.0-14.oe2003sp4
3.54.0-14.oe2003sp4
nss
openEuler:22.03-LTS-SP4
 before 3.72.0-12.oe2203sp4
3.72.0-12.oe2203sp4
mozilla-nspr
SUSE:Linux Micro 6.2
From an advisory covering 115 CVEs
 before 4.39-160000.1.1
4.39-160000.1.1
mozilla-nss
SUSE:Linux Micro 6.2
From an advisory covering 115 CVEs
 before 3.125-160000.1.1
3.125-160000.1.1
MozillaFirefox
SUSE:Linux Enterprise Server 16.0
From an advisory covering 115 CVEs
 before 153.1.0-160000.1.1
153.1.0-160000.1.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 16.0
From an advisory covering 115 CVEs
 before 153-160000.1.1
153-160000.1.1
mozilla-nspr
SUSE:Linux Enterprise Server 16.0
From an advisory covering 115 CVEs
 before 4.39-160000.1.1
4.39-160000.1.1
mozilla-nss
SUSE:Linux Enterprise Server 16.0
From an advisory covering 115 CVEs
 before 3.125-160000.1.1
3.125-160000.1.1
rust-cbindgen
SUSE:Linux Enterprise Server 16.0
From an advisory covering 115 CVEs
 before 0.29.4+git0-160000.1.1
0.29.4+git0-160000.1.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 115 CVEs
 before 153.1.0-160000.1.1
153.1.0-160000.1.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 115 CVEs
 before 153-160000.1.1
153-160000.1.1
mozilla-nspr
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 115 CVEs
 before 4.39-160000.1.1
4.39-160000.1.1
mozilla-nss
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 115 CVEs
 before 3.125-160000.1.1
3.125-160000.1.1
rust-cbindgen
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 115 CVEs
 before 0.29.4+git0-160000.1.1
0.29.4+git0-160000.1.1
MozillaFirefox
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-118.5.4
153.2.0-118.5.4
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 139 CVEs
 before 153-41.3.8
153-41.3.8
mozilla-nspr
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 139 CVEs
 before 4.39-19.39.1
4.39-19.39.1
mozilla-nss
SUSE:Linux Enterprise Server 12 SP5-LTSS
From an advisory covering 139 CVEs
 before 3.125-58.147.1
3.125-58.147.1
MozillaFirefox
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 139 CVEs
 before 153.2.0-118.5.4
153.2.0-118.5.4
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 139 CVEs
 before 153-41.3.8
153-41.3.8
mozilla-nspr
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 139 CVEs
 before 4.39-19.39.1
4.39-19.39.1
mozilla-nss
SUSE:Linux Enterprise Server LTSS Extended Security 12 SP5
From an advisory covering 139 CVEs
 before 3.125-58.147.1
3.125-58.147.1
mozilla-nspr
SUSE:Linux Enterprise Micro 5.3
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Micro 5.3
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
mozilla-nspr
SUSE:Linux Enterprise Micro 5.4
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Micro 5.4
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
mozilla-nspr
SUSE:Linux Enterprise Micro 5.5
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Micro 5.5
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
mozilla-nspr
SUSE:Linux Enterprise Module for Basesystem 15 SP7
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Module for Basesystem 15 SP7
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Module for Desktop Applications 15 SP7
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server 15 SP4-LTSS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server 15 SP5-LTSS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server 15 SP6-LTSS
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server for SAP Applications 15 SP4
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server for SAP Applications 15 SP5
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaFirefox
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 139 CVEs
 before 153.2.0-150400.157.5.1
153.2.0-150400.157.5.1
MozillaFirefox-branding-SLE
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 139 CVEs
 before 153-150400.14.3.1
153-150400.14.3.1
mozilla-nspr
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 139 CVEs
 before 4.39-150400.12.3.1
4.39-150400.12.3.1
mozilla-nss
SUSE:Linux Enterprise Server for SAP Applications 15 SP6
From an advisory covering 139 CVEs
 before 3.125-150400.3.74.1
3.125-150400.3.74.1
MozillaThunderbird
SUSE:Linux Enterprise Module for Package Hub 15 SP7
From an advisory covering 143 CVEs
 before 153.2.0-150400.13.3.1
153.2.0-150400.13.3.1
MozillaThunderbird
SUSE:Linux Enterprise Workstation Extension 15 SP7
From an advisory covering 143 CVEs
 before 153.2.0-150400.13.3.1
153.2.0-150400.13.3.1
mozjs52
Ubuntu:18.04:LTS
 All versions, plus listed versions
52.3.1-0ubuntu352.3.1-7fakesync152.8.1-0ubuntu0.18.04.152.9.1-0ubuntu0.18.04.1
 None known
mozjs38
Ubuntu:18.04:LTS
 All versions, plus listed versions
38.8.0~repack1-0ubuntu138.8.0~repack1-0ubuntu338.8.0~repack1-0ubuntu4
 None known
mozjs68
Ubuntu:20.04:LTS
 All versions, plus listed versions
68.5.0-1~fakesync68.5.0-2~fakesync68.6.0-168.6.0-1ubuntu1
 None known
mozjs52
Ubuntu:20.04:LTS
 All versions, plus listed versions
52.9.1-1build152.9.1-1ubuntu3
 None known
mozjs102
Ubuntu:22.04:LTS
 All versions, plus listed versions
102.11.0-0ubuntu0.22.04.1102.12.0-0ubuntu0.22.04.1102.13.0-0ubuntu0.22.04.1102.15.1-0ubuntu0.22.04.1
 None known
mozjs78
Ubuntu:22.04:LTS
 All versions, plus listed versions
78.13.0-178.15.0-278.15.0-4ubuntu1
 None known
mozjs91
Ubuntu:22.04:LTS
 All versions, plus listed versions
91.5.1-0ubuntu191.6.0-191.6.0-291.7.0-291.10.0-0ubuntu1
 None known
thunderbird
Ubuntu:22.04:LTS
 All versions, plus listed versions
1:91.1.2+build1-0ubuntu11:91.3.0+build2-0ubuntu11:91.3.1+build1-0ubuntu11:91.3.2+build1-0ubuntu11:91.4.0+build1.1-0ubuntu1
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1:91.4.0+build2-0ubuntu11:91.5.0+build1-0ubuntu11:91.5.1+build1-0ubuntu11:91.6.1+build1-0ubuntu11:91.7.0+build1-0ubuntu11:91.7.0+build2-0ubuntu11:91.8.0+build2-0ubuntu11:91.9.1+build1-0ubuntu0.22.04.11:91.11.0+build2-0ubuntu0.22.04.11:102.2.2+build1-0ubuntu0.22.04.11:102.4.2+build2-0ubuntu0.22.04.11:102.7.1+build2-0ubuntu0.22.04.11:102.8.0+build2-0ubuntu0.22.04.11:102.9.0+build1-0ubuntu0.22.04.11:102.10.0+build2-0ubuntu0.22.04.11:102.11.0+build1-0ubuntu0.22.04.11:102.13.0+build1-0ubuntu0.22.04.11:102.15.0+build1-0ubuntu0.22.04.11:102.15.1+build1-0ubuntu0.22.04.11:115.3.1+build1-0ubuntu0.22.04.21:115.4.1+build1-0ubuntu0.22.04.11:115.5.0+build1-0ubuntu0.22.04.11:115.6.0+build2-0ubuntu0.22.04.11:115.8.1+build1-0ubuntu0.22.04.11:115.9.0+build1-0ubuntu0.22.04.11:115.10.1+build1-0ubuntu0.22.04.11:115.11.0+build2-0ubuntu0.22.04.11:115.12.0+build3-0ubuntu0.22.04.11:115.13.0+build5-0ubuntu0.22.04.11:115.15.0+build1-0ubuntu0.22.04.11:115.16.0+build2-0ubuntu0.22.04.11:115.18.0+build1-0ubuntu0.22.04.11:128.12.0+build1-0ubuntu0.22.04.11:140.7.1+build1-0ubuntu0.22.04.1
 None known
mozjs102
Ubuntu:24.04:LTS
 All versions, plus listed versions
102.15.1-1102.15.1-3ubuntu2
 None known
mozjs115
Ubuntu:24.04:LTS
 All versions, plus listed versions
115.3.0-0ubuntu1115.4.0-2115.5.0-1115.6.0-1115.7.0-4
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115.8.0-1115.9.0-1115.9.0-1build1115.10.0-1
 None known
MozillaFirefox
openSUSE:Tumbleweed
From an advisory covering 63 CVEs
 before 153.0-1.1
153.0-1.1
firefox-esr
openSUSE:Tumbleweed
From an advisory covering 228 CVEs
 before 153.0-1.1
153.0-1.1
MozillaFirefox
openSUSE:Leap 16.0
From an advisory covering 115 CVEs
 before 153.1.0-160000.1.2
153.1.0-160000.1.2
mozilla-nspr
openSUSE:Leap 16.0
From an advisory covering 115 CVEs
 before 4.39-160000.1.1
4.39-160000.1.1
mozilla-nss
openSUSE:Leap 16.0
From an advisory covering 115 CVEs
 before 3.125-160000.1.1
3.125-160000.1.1
rust-cbindgen
openSUSE:Leap 16.0
From an advisory covering 115 CVEs
 before 0.29.4+git0-160000.1.1
0.29.4+git0-160000.1.1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-16389 is a critical vulnerability (CVSS 9.8) in Mozilla Firefox, published July 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.56%, the 47th percentile. Fixed in nss 3.85-r4.

References

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This page doesn't list everything

Left out here: 218 references and the rest of 7 source descriptions. The JSON record has them.

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