OpenImageIO: PSD RawColor indexed image out-of-bounds read in `interleave_row`

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63420
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-18 16:17:07 UTC
Updated2026-09-18 16:17:07 UTC
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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS: 0.001300000 probability, percentile 0.029970000 (date 2026-09-19)

Problem Types: CWE-125 | CWE-129 | CWE-125 CWE-125: Out-of-bounds Read | CWE-129 CWE-129: Improper Validation of Array Index

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
3.1CNADECLARED5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AcademySoftwareFoundation OpenImageIO affected < 3.0.21.0 Not specified
CNA AcademySoftwareFoundation OpenImageIO affected >= 3.1.0.0, < 3.1.16.0 Not specified
CNA AcademySoftwareFoundation OpenImageIO affected >= 3.2.0.0-dev, < 3.2.0.3-beta1 Not specified

References

ReferenceSourceLinkTags
github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/pull/5307 [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/commit/4995b25b82165526... [email protected] github.com
github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHS... [email protected] github.com
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