{"id":"CVE-2026-63635","title":"OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation","summary":"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, A crafted psd with an invalid color_mode bypasses normal va…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-125","CWE-129"],"vendor":"openimageio","product":"openimageio","affected":["openimageio < 3.0.21.0","openimageio >= 3.1.0.0, <= 3.1.16.0","openimageio = 3.2.0.0","openimageio = 3.2.0.2"],"patched":["openimageio 3.0.21.0"],"published":"2026-09-18","updated":"2026-09-29","sourceUpdated":"2026-09-29T18:55:56.597","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-63635","references":[{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/50481b0f90932a4675f65f3cc26407139cb9e20e","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5282","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0","label":"security-advisories@github.com"},{"url":"https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3c8w-9xvm-r6gf","label":"security-advisories@github.com"},{"url":"https://github.com/user-attachments/files/29539076/poc.zip","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00193,"epssPercentile":0.08854,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-09-24T20:56:37.753363Z"},"ingestedAt":"2026-09-18T16:45:41.388Z","slug":"CVE-2026-63635","body":"## Overview\n\nOpenImageIO 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, A crafted psd with an invalid color_mode bypasses normal validation when oiio:rawcolor or psd:rawdata is enabled. psdinput::setup() then uses the attacker-controlled value to index fixed color-mode tables, causing a global out-of-bounds read and potentially a bogus allocation, resulting in denial of service. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::validate_header(), PSDInput::setup(), oiio:RawColor, psd:RawData, color_mode, and mode_channel_count, 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.\n\n## Affected\n\n- `openimageio < 3.0.21.0`\n- `openimageio >= 3.1.0.0, <= 3.1.16.0`\n- `openimageio = 3.2.0.0`\n- `openimageio = 3.2.0.2`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `openimageio 3.0.21.0`","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":210403,"id":"CVE-2026-63635","ts":1790286832141,"field":"exploit_available","old":"false","new":"true"}]}