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.
INFO
Published Date :
2026-03-03T22:42:49.086Z
Last Modified :
2026-03-03T22:42:49.086Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-27622 vulnerability.
No data.
REFERENCES
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