CVE-2026-53532 - OpenEXR: Unhandled assert abort in HTJ2K decoder via crafted QCD marker (DoS)
Brief
CVE ID : CVE-2026-53532
Published : Aug. 24, 2026, 11:16 p. m.
- 1 hour, 55 minutes 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 crafted HTJ2K-compressed EXR file causes 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.