openexr: OpenEXR is the reference implementation and specification for the EXR high-dynamic-range image file format, widely us...
CVE-2026-55371 is fixed in openexr on 1 platform by DEBIAN-CVE-2026-55371 (version 3.4.14-0.1), released August 28, 2026. It is not reported as exploited. Patch Radar priority: Routine.
OpenEXR is the reference implementation and specification for the EXR high-dynamic-range image file format, widely used in the motion picture industry. Versions 3.4.0 through 3.4.12 contain a NULL pointer dereference in the OpenEXRCore function exr_attr_set_bytes(). The public setter validates the top-level exr_attr_bytes_t value pointer but does not verify that the nested type_hint pointer is non-NULL when hint_length is greater than zero. When a caller supplies a positive hint_length together with a NULL type_hint, exr_attr_bytes_create() allocates a destination type-hint buffer and then copies from the NULL source pointer, causing a deterministic crash. The flaw is reachable through the public OpenEXRCore C API and results in a denial of service. The issue is fixed in version 3.4.13.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| openexr · Debian 14 | 3.4.14-0.1 | DEBIAN-CVE-2026-55371 | Aug 28, 2026 |
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