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CVE-2026-26981

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry.

Published Feb 24, 2026 · updated Jun 17, 2026 · openexr openexr

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the function in when parsing a malformed EXR file through a memory-mapped . A signed integer subtraction produces a negative value that is implicitly converted to , resulting in a massive length being passed to . Versions 3.3.7 and 3.4.5 contain a patch.

Code

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Timeline

Detection, updates, and resolution for this record.

  1. Feb 24, 2026 · NIST NVD

    Detected

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the function in when parsing a malformed EXR file through a memory-mapped . A signed integer subtraction produces a negative value that is implicitly conv

  2. Jun 17, 2026 · NIST NVD

    Updated

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the function in when parsing a malformed EXR file through a memory-mapped . A signed integer subtraction produces a negative value that is implicitly conv

Affected

  • cpe openexr/openexrversion unspecified

Sources

  • NIST NVDVulnerability recordCVE-2026-26981

    OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the fun

    nvd.nist.gov

References