{"id":"CVE-2026-63420","state":"PUBLISHED","title":"OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`","description":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1.","publishedAt":"2026-09-18T15:36:51.141Z","updatedAt":"2026-09-22T14:45:43.808Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["AcademySoftwareFoundation OpenImageIO"],"affected":[{"vendor":"AcademySoftwareFoundation","product":"OpenImageIO","versions":[{"version":"< 3.0.21.0","status":"affected"},{"version":">= 3.1.0.0, < 3.1.16.0","status":"affected"},{"version":">= 3.2.0.0-dev, < 3.2.0.3-beta1","status":"affected"}]}],"references":["https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-x877-h4xx-5m5j","https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5307","https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/4995b25b8216552630e0aee0d8870e0d3aaae7ee","https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0","https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0"],"weaknesses":["CWE-125","CWE-129"],"ingestedAt":"2026-10-29T20:12:41.951Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/63xxx/CVE-2026-63420.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-63420","state":"PUBLISHED","datePublished":"2026-09-18T15:36:51.141Z","dateUpdated":"2026-09-22T14:45:43.808Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-07-16T19:20:28.988Z"},"containers":{"cna":{"title":"OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`","descriptions":[{"lang":"en","value":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1."}],"affected":[{"vendor":"AcademySoftwareFoundation","product":"OpenImageIO","versions":[{"version":"< 3.0.21.0","status":"affected"},{"version":">= 3.1.0.0, < 3.1.16.0","status":"affected"},{"version":">= 3.2.0.0-dev, < 3.2.0.3-beta1","status":"affected"}]}],"references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-x877-h4xx-5m5j","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-x877-h4xx-5m5j","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5307","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5307","tags":["x_refsource_MISC"]},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/4995b25b8216552630e0aee0d8870e0d3aaae7ee","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/4995b25b8216552630e0aee0d8870e0d3aaae7ee","tags":["x_refsource_MISC"]},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0","tags":["x_refsource_MISC"]},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0","name":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-129","lang":"en","description":"CWE-129: Improper Validation of Array Index","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-18T15:36:51.141Z"},"source":{"advisory":"GHSA-x877-h4xx-5m5j","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-x877-h4xx-5m5j","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-22T14:44:08.621517Z","id":"CVE-2026-63420","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-22T14:45:43.808Z"}}]}}}