CVE catalog
CVE-2026-43909
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, a signed 32-bit integer overflow in th
- Severity
- High · CVSS 8.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.37% · Oct 25, 2026
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, a signed 32-bit integer overflow in the loop index expression i * 4 inside SwapRGBABytes() causes the function to compute a large negative pointer offset when processing kABGR DPX images with large dimensions. The immediate crash is an out-of-bounds read (the memcpy at line 45 reads from &input[i * 4] first), but the subsequent write operations at lines 46–49 target the same wrapped offset — making this a combined OOB read+write primitive. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | openimageio | sid | 3.1.18.1+dfsg-2 | fixed |
| Debian | openimageio | forky | 3.1.18.1+dfsg-2 | fixed |
| Debian | openimageio | trixie | 2.5.18.0+dfsg-1 | vulnerable |
| Debian | openimageio | bookworm | 2.4.7.1+dfsg-2 | vulnerable |
| Cpe | openimageio | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | libopenimageio-dev | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | libopenimageio-doc | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | libopenimageio2.4t64 | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | openimageio-tools | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | python3-openimageio | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | fixed |
| Cpe | openimageio | Not reported | Not reported | vulnerable |
| Cpe | openimageio | Not reported | 3.0.18.0 | fixed |
| Cpe | openimageio | Not reported | 3.1.13.0 | fixed |
| Cpe | openimageio | Not reported | Not reported | unknown |
| Cpe | openimageio | Not reported | Not reported | unknown |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | openimageio | source | sid | 3.1.18.0+dfsg-2 | not yet assigned | Not reported | [1139915] |
| Debian | openimageio | source | forky | 3.1.18.0+dfsg-2 | not yet assigned | Not reported | [1139915] |
| Debian | openimageio | source | trixie | (unfixed) | not yet assigned | Not reported | [1139915] |
| Debian | openimageio | source | bookworm | (unfixed) | not yet assigned | Not reported | [1139915] |
| Cpe | openimageio | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | libopenimageio-dev | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | libopenimageio-doc | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | libopenimageio2.4t64 | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | openimageio-tools | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | python3-openimageio | cpe | Not reported | 2.4.17.0+dfsg-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Cpe | openimageio | cpe | Not reported | 3.0.18.0 | Not reported | Not reported | Not reported |
| Cpe | openimageio | cpe | Not reported | 3.1.13.0 | Not reported | Not reported | Not reported |
Notes
[trixie] openimageio: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libopenimageio2.4]Affected
Source package: [openimageio]
Details (2)
2.4.7.1+dfsg-2· amd64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
2.4.7.1+dfsg-2· arm64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
- [libopenimageio-dev]Affected
Source package: [openimageio]
Details (2)
2.4.7.1+dfsg-2· amd64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
2.4.7.1+dfsg-2· arm64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
- [libopenimageio-doc]Affected
Source package: [openimageio]
Details (2)
2.4.7.1+dfsg-2· all · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
2.4.7.1+dfsg-2· all · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
- [openimageio-tools]Affected
Source package: [openimageio]
Details (2)
2.4.7.1+dfsg-2· amd64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
2.4.7.1+dfsg-2· arm64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
- [python3-openimageio]Affected
Source package: [openimageio]
Details (2)
2.4.7.1+dfsg-2· amd64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
2.4.7.1+dfsg-2· arm64 · bookwormAffected
nvd · openimageio · debian · bookworm; nvd · openimageio · debian · 12
[Debian 13 (Trixie)]
- [libopenimageio2.5]Affected
Source package: [openimageio]
Details (2)
2.5.18.0+dfsg-1+b1· amd64 · trixieAffected
nvd · openimageio · debian · 13
2.5.18.0+dfsg-1+b1· arm64 · trixieAffected
nvd · openimageio · debian · 13
- [libopenimageio-dev]Affected
Source package: [openimageio]
Details (2)
2.5.18.0+dfsg-1+b1· amd64 · trixieAffected
nvd · openimageio · debian · 13
2.5.18.0+dfsg-1+b1· arm64 · trixieAffected
nvd · openimageio · debian · 13
- [libopenimageio-doc]Affected
Source package: [openimageio]
Details (2)
2.5.18.0+dfsg-1· all · trixieAffected
nvd · openimageio · debian · 13
2.5.18.0+dfsg-1· all · trixieAffected
nvd · openimageio · debian · 13
- [openimageio-tools]Affected
Source package: [openimageio]
Details (2)
2.5.18.0+dfsg-1+b1· amd64 · trixieAffected
nvd · openimageio · debian · 13
2.5.18.0+dfsg-1+b1· arm64 · trixieAffected
nvd · openimageio · debian · 13
- [python3-openimageio]Affected
Source package: [openimageio]
Details (2)
2.5.18.0+dfsg-1+b1· amd64 · trixieAffected
nvd · openimageio · debian · 13
2.5.18.0+dfsg-1+b1· arm64 · trixieAffected
nvd · openimageio · debian · 13
Observed:
References
- [https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-g267-j53j-5258]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-43909]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-43909]
- [https://security-tracker.debian.org/tracker/CVE-2026-43909]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43909.json]
- [https://ubuntu.com/security/notices/USN-8438-1]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [Ubuntu Security Notices (USN)]