CVE-2026-0888
Information disclosure in the XML component
5.3 Medium
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
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
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
0.35%Up 0.3 points since Jan 14, 2026
What each source reports
CVE List Score used
Information disclosure in the XML component
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
- Record
CVE-2026-0888- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2026-2079
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
- Record
EUVD-2026-2079- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-94r2-4g95-pg9m
Information disclosure in the XML component. This vulnerability affects Firefox < 147.
Information disclosure in the XML component. This vulnerability affects Firefox < 147.
- Record
GHSA-94r2-4g95-pg9m- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
NVD
Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.
- Record
CVE-2026-0888- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-0888
Information disclosure in the XML component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
- Record
UBUNTU-CVE-2026-0888- CVSS 3.1
- 5.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVopenSUSE-SU-2026:10046-1 No score
MozillaFirefox-147.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-147.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:10046-1- 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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 16 CVEs |
before 147.0-1.1 | 147.0-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 228 CVEs |
before 153.0-1.1 | 153.0-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected | ||
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-0888 is a medium vulnerability (CVSS 5.3) in Mozilla Firefox, published January 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. No source names a fixed version.
References
bugzilla.mozilla.org/show_bug.cgi?id=1985996
mozilla.org/security/advisories/mfsa2026-01
nvd.nist.gov/vuln/detail/CVE-2026-0888
github.com/advisories/GHSA-94r2-4g95-pg9m
ubuntu.com/security/CVE-2026-0888
Show 194 moreShow less
cve.org/CVERecord?id=CVE-2026-0888
suse.com/security/cve/CVE-2026-0877
This page doesn't list everything
Left out here: 48 references. The JSON record has them.