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CVE-2026-65969

5.5 · MEDIUM

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation.

Published Sep 18, 2026openimageioCWE-125EPSS 0.20%

Overview

CVE-2026-65969 is a medium-severity vulnerability affecting openimageio openimageio. It was published on September 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.21.0, 3.1.16.0, and 3.2.0.3-beta1, A truncated tga can leave a pending gif frame that is processed during output close. gifsplitpalette() computes numpixels multiplied by the palette partition width in signed 32-bit arithmetic; a large image overflows that intermediate, corrupts subpixelsa, and drives an out-of-bounds read while building the gif palette, resulting in a process crash and denial of service. The affected implementation is identified by src/gif.imageio/gif.h, GifSplitPalette(), numPixels, subPixelsA, GIFOutput, and truncated TGA input, 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.

Remediation

Check the references section for vendor advisories and patches from openimageio. Update openimageio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
openimageioopenimageio>= 0, < 3.0.21.0Affected

References

GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/commit/134977da625a84fc5a09a34321806f1fe0093c24GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/pull/5292GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.21.0GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.16.0GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-9mwc-fjgj-8wmq

How CyberStrike helps

Frequently asked questions

What is CVE-2026-65969?

CVE-2026-65969 is a medium-severity vulnerability affecting openimageio openimageio. It was published on September 18, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-65969?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-65969?

Check the references section for vendor advisories and patches from openimageio. Update openimageio to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-65969?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-65969 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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