CVE catalog
CVE-2026-42450
OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data
- Severity
- High · CVSS 8.4
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 - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.17% · Oct 25, 2026
OpenColorIO is a color management framework for visual effects and animation. Prior to version 2.5.2, `FileFormatSpi3D.cpp:163` uses `sscanf` with `%s` into 64-byte stack buffers when parsing LUT data lines. Input comes from `lineBuffer[4096]`, so a crafted .spi3d file can overflow by ~4000 bytes on non-Windows. Version 2.5.2 fixes the issue.
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 | opencolorio | sid | 2.5.1+dfsg-4 | vulnerable |
| Debian | opencolorio | forky | 2.5.1+dfsg-4 | vulnerable |
| Debian | opencolorio | trixie | 2.1.3+dfsg-1.2 | vulnerable |
| Debian | opencolorio | bookworm | 2.1.2+dfsg1-4 | vulnerable |
| Cpe | opencolorio | Not reported | Not reported | vulnerable |
| Opensuse | OpenColorIO | tumbleweed | 2.5.2-1.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | opencolorio | source | sid | (unfixed) | not yet assigned | Not reported | [1141498] |
| Debian | opencolorio | source | forky | (unfixed) | not yet assigned | Not reported | [1141498] |
| Debian | opencolorio | source | trixie | (unfixed) | not yet assigned | Not reported | [1141498] |
| Debian | opencolorio | source | bookworm | (unfixed) | not yet assigned | Not reported | [1141498] |
| Opensuse | OpenColorIO | rpm | tumbleweed | 2.5.2-1.1 | Not reported | OPENSUSE-SU-2026:10801-1 | Not reported |
Notes
[trixie] opencolorio: Minor issue [bookworm] opencolorio: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libopencolorio2.1]Affected
Source package: [opencolorio]
Details (2)
2.1.2+dfsg1-4+b3· amd64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
2.1.2+dfsg1-4+b3· arm64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
- [libopencolorio-dev]Affected
Source package: [opencolorio]
Details (2)
2.1.2+dfsg1-4+b3· amd64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
2.1.2+dfsg1-4+b3· arm64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
- [opencolorio-tools]Affected
Source package: [opencolorio]
Details (2)
2.1.2+dfsg1-4+b3· amd64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
2.1.2+dfsg1-4+b3· arm64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
- [python3-pyopencolorio]Affected
Source package: [opencolorio]
Details (2)
2.1.2+dfsg1-4+b3· amd64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
2.1.2+dfsg1-4+b3· arm64 · bookwormAffected
nvd · opencolorio · debian · bookworm; nvd · opencolorio · debian · 12
[Debian 13 (Trixie)]
- [libopencolorio2.1t64]Affected
Source package: [opencolorio]
Details (2)
2.1.3+dfsg-1.2· amd64 · trixieAffected
nvd · opencolorio · debian · 13
2.1.3+dfsg-1.2· arm64 · trixieAffected
nvd · opencolorio · debian · 13
- [libopencolorio-dev]Affected
Source package: [opencolorio]
Details (2)
2.1.3+dfsg-1.2· amd64 · trixieAffected
nvd · opencolorio · debian · 13
2.1.3+dfsg-1.2· arm64 · trixieAffected
nvd · opencolorio · debian · 13
- [opencolorio-tools]Affected
Source package: [opencolorio]
Details (2)
2.1.3+dfsg-1.2· amd64 · trixieAffected
nvd · opencolorio · debian · 13
2.1.3+dfsg-1.2· arm64 · trixieAffected
nvd · opencolorio · debian · 13
- [python3-pyopencolorio]Affected
Source package: [opencolorio]
Details (2)
2.1.3+dfsg-1.2· amd64 · trixieAffected
nvd · opencolorio · debian · 13
2.1.3+dfsg-1.2· arm64 · trixieAffected
nvd · opencolorio · debian · 13
[openSUSE Tumbleweed]
- [libOpenColorIO2_5]Unknown
Source package: [OpenColorIO]
Details (1)
2.5.2-1.3· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-1.1Version impact unknown
nvd · OpenColorIO · opensuse · tumbleweed
- [OpenColorIO-devel]Unknown
Source package: [OpenColorIO]
Details (1)
2.5.2-1.3· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-1.1Version impact unknown
nvd · OpenColorIO · opensuse · tumbleweed
- [python3-OpenColorIO]Unknown
Source package: [OpenColorIO]
Details (1)
2.5.2-1.3· x86_64 · tumbleweedUnknown · Fixed:
2.5.2-1.1Version impact unknown
nvd · OpenColorIO · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_10801-1.json]
- [https://github.com/AcademySoftwareFoundation/OpenColorIO/releases/tag/v2.5.2]
- [https://github.com/AcademySoftwareFoundation/OpenColorIO/security/advisories/GHSA-rxp3-rrgx-f547]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-42450]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-42450]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10801-1]
- [https://security-tracker.debian.org/tracker/CVE-2026-42450]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42450.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]