CVE-2026-43908

Description

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.18.0 and 3.1.13.0, a signed 32-bit integer overflow in the pixel-loop index expression i * 3 inside ConvertCbYCrYToRGB() causes the function to compute a large negative pointer offset into the output buffer, producing an out-of-bounds write that crashes the process. This vulnerability is fixed in 3.0.18.0 and 3.1.13.0.

PUBLISHED Reserved 2026-05-04 | Published 2026-05-14 | Updated 2026-05-15 | Assigner GitHub_M

Problem types

CWE-190: Integer Overflow or Wraparound

CWE-787: Out-of-bounds Write

Product status

References

github.com/...mageIO/security/advisories/GHSA-2jr5-q49v-3858 exploit

github.com/...mageIO/security/advisories/GHSA-2jr5-q49v-3858

cve.org (CVE-2026-43908)

nvd.nist.gov (CVE-2026-43908)

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