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.
Affected products
openimageio: openimageio
References8
- github.com/AcademySoftwareFoundation/OpenImageIO/security/advis… ExploitVendor Advisory
- github.com/AcademySoftwareFoundation/OpenImageIO/security/advis… ExploitVendor Advisory
- github.com/AcademySoftwareFoundation/OpenImageIO/commit/91500ed… Patch
- github.com/AcademySoftwareFoundation/OpenImageIO/commit/be98485… Patch
- github.com/AcademySoftwareFoundation/OpenImageIO/commit/ee3370d… Patch
- github.com/AcademySoftwareFoundation/OpenImageIO/pull/5030 Issue TrackingPatch
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v… Release Notes
- github.com/AcademySoftwareFoundation/OpenImageIO/releases/tag/v… Release Notes
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 10 · as of 8 November 2026
- CWE
- CWE-125
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.