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CVE-2026-50291

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 17, 2026openimageioCWE-125EPSS 0.20%

Overview

CVE-2026-50291 is a medium-severity vulnerability affecting openimageio openimageio. It was published on September 17, 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 versions 3.0.16.0 and 3.1.11.0, processing a crafted BMP file through oiiotool or an application linked to OpenImageIO can reach BMP palette handling in src/bmp.imageio/bmpinput.cpp with an empty color table. BmpInput::read_native_scanline then performs an invalid palette read while decoding an RLE-compressed scanline, causing a process crash and denial of service. This issue is fixed in versions 3.0.16.0 and 3.1.11.0.

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, < 3.0.16.0Affected

References

GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/commit/91500ed58ce927b7e710c6bbc3b7f795bb0791b5GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/commit/be984856e315e0a82cd866745b544c8c4cb8bd45GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/commit/ee3370d004d5895554239b4302c59eedb721f086GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/pull/5030GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.16.0GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.11.0GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-q3c7-3225-66h7GitHubgithub.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHSA-q3c7-3225-66h7

How CyberStrike helps

Frequently asked questions

What is CVE-2026-50291?

CVE-2026-50291 is a medium-severity vulnerability affecting openimageio openimageio. It was published on September 17, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-50291?

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-2026-50291?

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-2026-50291?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-50291 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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