{"id":"CVE-2026-42450","aliases":["DEBIAN-CVE-2026-42450","EUVD-2026-38769","GHSA-rxp3-rrgx-f547","UBUNTU-CVE-2026-42450","openSUSE-SU-2026:10801-1"],"status":"published","title":"OpenColorIO vulnerable to stack buffer overflow via unbounded `sscanf %s` in Spi3D (.spi3d) LUT parser","description":"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.","severity":{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00182,"percentile":0.07832,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-120"],"published":"2026-05-17T00:00:00Z","modified":"2026-10-28T02:31:05Z","fixes":[{"ecosystem":"openSUSE:Tumbleweed","package":"OpenColorIO","fixed_in":["2.5.2-1.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:12","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2+dfsg1-4","2.1.2+dfsg1-4.1","2.1.2+dfsg1-4.2","2.1.3+dfsg-1","2.1.3+dfsg-1.1","2.1.3+dfsg-1.1+loong64","2.1.3+dfsg-1.1~exp1","2.1.3+dfsg-1.2","2.1.3+dfsg-2","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.1+dfsg-3","2.5.1+dfsg-4","2.6.0+dfsg-1"]},{"source":"osv","ecosystem":"Debian:13","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.3+dfsg-1.2","2.1.3+dfsg-2","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.1+dfsg-3","2.5.1+dfsg-4","2.6.0+dfsg-1"]},{"source":"osv","ecosystem":"Debian:14","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.3+dfsg-1.2","2.1.3+dfsg-2","2.5.1+dfsg-1","2.5.1+dfsg-2","2.5.1+dfsg-3","2.5.1+dfsg-4","2.6.0+dfsg-1"]},{"source":"osv","ecosystem":"Ubuntu:16.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.9~dfsg0-4"]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.9~dfsg0-11","1.0.9~dfsg0-11build1","1.0.9~dfsg0-12","1.1.0~dfsg0-1"]},{"source":"osv","ecosystem":"Ubuntu:20.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.1~dfsg0-3","1.1.1~dfsg0-5","1.1.1~dfsg0-5ubuntu1","1.1.1~dfsg0-6"]},{"source":"osv","ecosystem":"Ubuntu:22.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.1~dfsg0-7","1.1.1~dfsg0-7.1","1.1.1~dfsg0-7.1build1"]},{"source":"osv","ecosystem":"Ubuntu:24.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.2+dfsg1-4.2build1","2.1.3+dfsg-1","2.1.3+dfsg-1build1","2.1.3+dfsg-1.1build2","2.1.3+dfsg-1.1build3"]},{"source":"osv","ecosystem":"Ubuntu:25.10","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.3+dfsg-1.2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.1+dfsg-1","2.5.1+dfsg-1build1","2.5.1+dfsg-4","2.5.1+dfsg-4build1"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"opencolorio","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.1.3+dfsg-1.2","2.1.3+dfsg-2","2.5.1+dfsg-1"]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"OpenColorIO","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.2-1.1"}]}]}],"products":[{"vendor":"academysoftwarefoundation","product":"opencolorio"}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenColorIO/security/advisories/GHSA-rxp3-rrgx-f547","tags":["x_refsource_CONFIRM","exploit","advisory","report"]},{"url":"https://github.com/AcademySoftwareFoundation/OpenColorIO/releases/tag/v2.5.2","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42450.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-42450","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-42450","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-42450","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-42450","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-42450","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-42450","title":"OpenColorIO vulnerable to stack buffer overflow via unbounded `sscanf %s` in Spi3D (.spi3d) LUT parser","description":"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.","status":"published","published":"2026-06-24T13:20:09.025Z","modified":"2026-06-24T18:56:15.215Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"cna"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T13:40:35.004553Z"}],"euvd":[{"id":"EUVD-2026-38769","description":"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.","status":"published","published":"2026-06-24T13:20:09Z","modified":"2026-06-24T18:56:15Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T18:20:30.242414Z"}],"nvd":[{"id":"CVE-2026-42450","description":"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.","status":"published","published":"2026-06-24T14:17:31.19Z","modified":"2026-10-25T23:10:00.167Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:12:25.288279Z"}],"osv":[{"id":"CVE-2026-42450","title":"OpenColorIO vulnerable to stack buffer overflow via unbounded `sscanf %s` in Spi3D (.spi3d) LUT parser","description":"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.","status":"published","published":"2026-06-24T13:20:09.025Z","modified":"2026-10-28T02:31:05.71389194Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T15:45:04.117819Z"},{"id":"DEBIAN-CVE-2026-42450","description":"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.","status":"published","published":"2026-06-24T14:17:31.19Z","modified":"2026-10-26T12:01:10.022249738Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T15:45:54.892385Z"},{"id":"UBUNTU-CVE-2026-42450","description":"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.","status":"published","published":"2026-06-24T14:17:00Z","modified":"2026-10-17T13:00:04.914832695Z","cvss":[{"version":"4.0","score":8.4,"vector":"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","level":"high"}],"updated_at":"2026-11-02T16:56:18.393417Z"},{"id":"openSUSE-SU-2026:10801-1","title":"OpenColorIO-devel-2.5.2-1.1 on GA media","description":"These are all security issues fixed in the OpenColorIO-devel-2.5.2-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-05-17T00:00:00Z","modified":"2026-05-18T07:45:07.109654Z","updated_at":"2026-11-02T16:58:38.415593Z"}]}}