CVE-2026-63635
OpenImageIO: PSD RawColor invalid color mode causes global out-of-bounds read and allocation DoS
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 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.
- Affected
- AcademySoftwareFoundation · OpenImageIO
- CVSS v3.1 GITHUB
- 5.5 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - EPSS
- 0.19% chance of exploitation in the next 30 days, 8th percentile
- Published
- 2026-09-18
- Updated
- 2026-09-24
Proof-of-concept exploits (1)
Security advisories
- AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3c8w-9xvm-r6gf
- AcademySoftwareFoundation/OpenImageIO/pull/5282