CVE-2026-63635
OpenImageIO: PSD RawColor invalid color mode causes global out-of-bounds read and allocation DoS
- State
- Published
- Severity
- 5.5 Medium
- Published
- Sep 18, 2026
- Updated
- Sep 24, 2026
- Reserved
- Jul 17, 2026
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, 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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 5.5 Medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | GitHub_M |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
OpenImageIOAcademySoftwareFoundation |
|
References
- https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3c8w-9xvm-r6gf
- https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5282
- https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/50481b0f90932a4675f65f3cc26407139cb9e20e
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0
- https://github.com/user-attachments/files/29539076/poc.zipexploit
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