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CVE PROGRAM SOURCE RECORD8.4 High

CVE-2026-27622

OpenEXR CompositeDeepScanLine integer-overflow leads to heap OOB write

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In CompositeDeepScanLine::readPixels, per-pixel totals are accumulated in vector<unsigned int> total_sizes for attacker-controlled large counts across many parts, total_sizes[ptr] wraps modulo 2^32. overall_sample_count is then derived from wrapped totals and used in samples[channel].resize(overall_sample_count). Decode pointer setup/consumption proceeds with true sample counts, and write operations in core unpack (generic_unpack_deep_pointers) overrun the undersized composite sample buffer. This vulnerability is fixed in v3.2.6, v3.3.8, and v3.4.6.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AcademySoftwareFoundation openexr

  • >= 2.3.0, < 3.2.6affected
  • >= 3.3.0, < 3.3.8affected
  • >= 3.4.0, < 3.4.6affected

References