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cve-2026-54920

OpenEXR: Integer overflow and uninitialized pointer cause invalid delete in OpenEXRUtil image resize

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Vulnerabilities & Patches
Emerging1 src

CVE-2026-54920 - OpenEXR: Integer overflow and uninitialized pointer cause invalid delete in OpenEXRUtil image resize

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. 4. 0 through 3. 4. 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.

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