CVE-2026-63420

NameCVE-2026-63420
DescriptionOpenImageIO 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, An indexed psd with transparency metadata creates fewer stored channel_buffers than the spec.nchannels value advertised by the rawcolor path. when oiio:rawcolor or psd:rawdata is enabled, psdinput::read_native_scanline() passes spec.nchannels to psdinput::interleave_row(), which indexes beyond channel_buffers, resulting in a heap out-of-bounds read and process crash. The affected implementation is identified by src/psd.imageio/psdinput.cpp, PSDInput::read_native_scanline(), PSDInput::interleave_row(), oiio:RawColor, psd:RawData, channel_buffers, and spec.nchannels, 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1148554

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
openimageio (PTS)bookworm2.4.7.1+dfsg-2vulnerable
trixie2.5.18.0+dfsg-1vulnerable
forky, sid2.5.19.1+dfsg-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
openimageiosource(unstable)(unfixed)1148554

Notes

https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-x877-h4xx-5m5j
https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5307
https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/4995b25b8216552630e0aee0d8870e0d3aaae7ee (v3.2.0.3-beta1)

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