CVE-2026-43903
OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in release builds
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Active
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
8.4
OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in release builds
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
CVE-2026-43903- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-787
- Updated
- 2026-11-02
EUVDEUVD-2026-30387
8.4
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
EUVD-2026-30387- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Updated
- 2026-11-02
NVD
8.4
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
CVE-2026-43903- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-787
- Updated
- 2026-11-02
OSV
8.4
OpenImageIO: SGI RLE decoder heap buffer overflow OIIO_DASSERT bounds checks are no-ops in release builds
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
CVE-2026-43903- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - Weakness
- CWE-787
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-43903
7.8
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
DEBIAN-CVE-2026-43903- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-43903
8.4
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, sgiinput.cpp:265,274 use OIIO_DASSERT for bounds checking in the RLE decode loop. In release builds, OIIO_DASSERT compiles to ((void)sizeof(x)) (dassert.h:210), making all bounds checks no-ops. A crafted .sgi file with RLE count exceeding scanline width causes heap buffer overflow and crash. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
- Record
UBUNTU-CVE-2026-43903- CVSS 4.0
- 8.4 High
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N - CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUSN-8438-1 No score
openimageio vulnerabilities
It was discovered that OpenImageIO incorrectly performed bounds checking when processing SGI files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-43903)
It was discovered that OpenImageIO incorrectly handled run-length encoding when processing Softimage PIC files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-43904)
It was discovered that OpenImageIO incorrectly validated subimage metadata when processing HEIF files. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. This issue only affected Ubuntu 20.04 LTS, Ubuntu 24.04 LTS and Ubuntu 26.04 LTS. (CVE-2026-43906)
It was discovered that OpenImageIO contained multiple integer overflow vulnerabilities when processing DPX files. An attacker could possibly use these issues to cause a denial of service or execute arbitrary code. (CVE-2026-43907, CVE-2026-43908, CVE-2026-43909)
- Record
USN-8438-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
openimageioDebian:12 |
All versions, plus listed versions 2.4.12.0+dfsg-12.4.13.0+dfsg-12.4.14.0+dfsg-12.4.16.0+dfsg-12.4.17.0+dfsg-1 Show 17 moreShow less2.4.17.0+dfsg-1.12.4.7.1+dfsg-22.4.9.0+dfsg-12.5.10.1+dfsg-12.5.12.0+dfsg-12.5.12.0+dfsg-22.5.14.0+dfsg-12.5.15.0+dfsg-12.5.16.0+dfsg-12.5.18.0+dfsg-12.5.19.1+dfsg-12.5.19.1+dfsg-22.5.7.0+dfsg-13.1.18.0+dfsg-13.1.18.0+dfsg-23.1.18.1+dfsg-13.1.18.1+dfsg-2 |
None known |
openimageioDebian:13 |
All versions, plus listed versions 2.5.18.0+dfsg-12.5.19.1+dfsg-12.5.19.1+dfsg-23.1.18.0+dfsg-13.1.18.0+dfsg-23.1.18.1+dfsg-13.1.18.1+dfsg-2 |
None known |
openimageioDebian:14 |
before 3.1.18.0+dfsg-2, plus listed versions 2.5.18.0+dfsg-12.5.19.1+dfsg-12.5.19.1+dfsg-23.1.18.0+dfsg-1 |
3.1.18.0+dfsg-2 |
openimageioUbuntu:Pro:16.04:LTS |
before 1.6.11~dfsg0-1ubuntu1+esm2, plus listed versions 1.5.17~dfsg0-1ubuntu21.5.20~dfsg0-1ubuntu21.5.23~dfsg0-1ubuntu11.6.9~dfsg0-4ubuntu11.6.10~dfsg0-1ubuntu11.6.10~dfsg0-2ubuntu11.6.11~dfsg0-1ubuntu1 |
1.6.11~dfsg0-1ubuntu1+esm2 |
openimageioUbuntu:Pro:18.04:LTS |
before 1.7.17~dfsg0-1ubuntu2+esm1, plus listed versions 1.6.17~dfsg0-1ubuntu51.7.17~dfsg0-1ubuntu2 |
1.7.17~dfsg0-1ubuntu2+esm1 |
openimageioUbuntu:Pro:20.04:LTS |
before 2.1.12.0~dfsg0-1ubuntu0.1~esm1, plus listed versions 2.0.10~dfsg0-12.0.11~dfsg0-12.0.12~dfsg0-12.0.12~dfsg0-1build12.0.12~dfsg0-1build22.1.10.1~dfsg0-5ubuntu42.1.10.1~dfsg0-5ubuntu52.1.12.0~dfsg0-1 |
2.1.12.0~dfsg0-1ubuntu0.1~esm1 |
openimageioUbuntu:22.04:LTS |
All versions, plus listed versions 2.2.10.1+dfsg-1build12.2.18.0+dfsg-12.2.18.0+dfsg-1build22.2.18.0+dfsg-1ubuntu2 |
None known |
openimageioUbuntu:Pro:24.04:LTS |
before 2.4.17.0+dfsg-1.1ubuntu0.1~esm1, plus listed versions 2.4.14.0+dfsg-12.4.16.0+dfsg-12.4.16.0+dfsg-1build12.4.17.0+dfsg-12.4.17.0+dfsg-1build12.4.17.0+dfsg-1.1build32.4.17.0+dfsg-1.1build4 |
2.4.17.0+dfsg-1.1ubuntu0.1~esm1 |
openimageioUbuntu:25.10 |
All versions, plus listed versions 2.5.18.0+dfsg-1build12.5.18.0+dfsg-1build2 |
None known |
openimageioUbuntu:26.10 |
All versions, plus listed versions 2.5.19.1+dfsg-22.5.19.1+dfsg-2build12.5.19.1+dfsg-2build2 |
None known |
openimageioUbuntu:Pro:26.04:LTS |
before 2.5.19.1+dfsg-2ubuntu0.1~esm1, plus listed versions 2.5.18.0+dfsg-1build22.5.19.1+dfsg-1build12.5.19.1+dfsg-1build32.5.19.1+dfsg-1build52.5.19.1+dfsg-2 |
2.5.19.1+dfsg-2ubuntu0.1~esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-43903 is a high vulnerability (CVSS 8.4) in Academysoftwarefoundation Openimageio, published May 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. Fixed in openimageio 3.1.18.0+dfsg-2.
References
github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-jg3q-vm3q-2j35
github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43903.json
nvd.nist.gov/vuln/detail/CVE-2026-43903
security-tracker.debian.org/tracker/CVE-2026-43903
ubuntu.com/security/CVE-2026-43903
cve.org/CVERecord?id=CVE-2026-43903