Vulnerability Details CVE-2026-63635
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 8.9%
CVSS Severity
CVSS v3 Score 5.5
References
- https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/50481b0f90932a4675f65f3cc26407139cb9e20e
- https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5282
- 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/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3c8w-9xvm-r6gf
- https://github.com/user-attachments/files/29539076/poc.zip
Products affected by CVE-2026-63635
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cpe:2.3:a:openimageio:openimageio:3.1.0.0
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cpe:2.3:a:openimageio:openimageio:3.1.10.0
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cpe:2.3:a:openimageio:openimageio:3.1.11.0
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cpe:2.3:a:openimageio:openimageio:3.1.12.0
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cpe:2.3:a:openimageio:openimageio:3.1.12.1
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cpe:2.3:a:openimageio:openimageio:3.1.13.0
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cpe:2.3:a:openimageio:openimageio:3.1.13.1
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cpe:2.3:a:openimageio:openimageio:3.1.14.0
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cpe:2.3:a:openimageio:openimageio:3.1.14.1
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cpe:2.3:a:openimageio:openimageio:3.1.15.0
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cpe:2.3:a:openimageio:openimageio:3.1.16.0
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cpe:2.3:a:openimageio:openimageio:3.1.4.0
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cpe:2.3:a:openimageio:openimageio:3.1.5.0
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cpe:2.3:a:openimageio:openimageio:3.1.6.0
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cpe:2.3:a:openimageio:openimageio:3.1.6.1
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cpe:2.3:a:openimageio:openimageio:3.1.6.2
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cpe:2.3:a:openimageio:openimageio:3.1.7.0
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cpe:2.3:a:openimageio:openimageio:3.1.8.0
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cpe:2.3:a:openimageio:openimageio:3.1.9.0