CVE-2026-54920 - OpenEXR: Integer overflow and uninitialized pointer cause invalid delete in OpenEXRUtil image resize
Brief
CVE ID : CVE-2026-54920
Published : Aug. 25, 2026, 12:10 a. m.
- 1 hour, 1 minute ago
Description : OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.
- 0 through 3.
- 12, a reachable assertion failure in the HTJ2K decode path allows a crafted HTJ2K-compressed EXR file to cause an unconditional process abort in any application that calls exr_start_read() on untrusted input, resulting in denial of service.
The crash is triggered by a QCD marker whose lower five bits are zero, which OpenEXR passes into the vendored OpenJPH library while constructing the codestream and evaluating its quantization delta parameters.