CVE-2026-63420 PUBLISHED

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

Assigner: GitHub_M
Reserved: 16.07.2026 Published: 18.09.2026 Updated: 18.09.2026

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, 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.

Metrics

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS Score: 5.5

Product Status

Vendor AcademySoftwareFoundation
Product OpenImageIO
Versions
  • Version < 3.0.21.0 is affected
  • Version >= 3.1.0.0, < 3.1.16.0 is affected
  • Version >= 3.2.0.0-dev, < 3.2.0.3-beta1 is affected

References

Problem Types

  • CWE-125: Out-of-bounds Read CWE
  • CWE-129: Improper Validation of Array Index CWE