Vulnerability Description
OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream containing consecutive 2880-byte header blocks without the mandatory end keyword makes fitsinput::read_fits_header() call itself without a depth bound. repeated recursive parsing exhausts the application stack, resulting in denial of service. The affected implementation is identified by src/fits.imageio/fitsinput.cpp, FitsInput::read_fits_header(), END keyword, and 2880-byte FITS header blocks, which define the relevant source path, functions, state, and trigger. This issue is fixed in versions 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/AcademySoftwareFoundation/OpenImageIO/commit/b0de7d40d06eb4ab
- https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5248
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.0.20.0
- https://github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v3.1.15.0
- https://github.com/AcademySoftwareFoundation/OpenImageIO/security/advisories/GHS
FAQ
What is CVE-2026-59156?
CVE-2026-59156 is a vulnerability with a CVSS score of 6.5 (MEDIUM). OpenImageIO is a toolset for reading, writing, and manipulating image files of any image file format relevant to VFX / animation. Prior to 3.0.20.0, 3.1.15.0, and 3.2.0.3-beta1, A crafted fits stream ...
How severe is CVE-2026-59156?
CVE-2026-59156 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-59156?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.