CVE-2026-63635: medium-severity vulnerability in AcademySoftwareFoundation OpenImageIO
OpenImageIO: PSD RawColor invalid color mode causes global out-of-bounds read and allocation DoS
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.5epss 0.2%
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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Affected products
AcademySoftwareFoundation · OpenImageIOpublic PoCs found — 1
cve_referencegithub.com/user-attachments/files/29539076/poc.zipunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — AcademySoftwareFoundation OpenImageIO
In the same product, most dangerous first.
CVE-2026-63638HIGHOpenImageIO: Cineon invalid bit depth heap out-of-bounds writeEPSS 0.5%CVE-2024-40630MEDIUMHEIF Heap OOB Read in OpenImageIOEPSS 0.4%CVE-2026-65970MEDIUMOpenImageIO: TIFF multithreaded scanline read use-after-scope in `TIFFInput::read_native_scanlines`EPSS 0.4%CVE-2026-43908HIGHOpenImageIO: Signed integer overflow in ConvertCbYCrYToRGB leads to heap out-of-bounds write in DPX 4:2:2 decoderEPSS 0.4%CVE-2026-43909HIGHOpenImageIO: Signed integer overflow in SwapRGBABytes loop index leads to out-of-bounds read/write in DPX ABGR decoderEPSS 0.4%CVE-2026-43907HIGHOpenImageIO: Integer overflow in QueryRGBBufferSizeInternal leads to heap out-of-bounds write in DPX decoder (kCbYCr and kABGR)EPSS 0.4%
References
https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/50481b0f90932a4675f65f3cc26407139cb9e20ehttps://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5282https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-3c8w-9xvm-r6gfhttps://github.com/user-attachments/files/29539076/poc.zip