CVE-2026-88384

Description

OpenEXR 3.4.14 contains a NULL Pointer Dereference in the C++ attribute parsing path. A specially crafted EXR file containing an unknown-type attribute with dataSize set to zero causes the parser to create an opaque attribute with a NULL packed_data pointer. The OpaqueAttribute constructor passes the NULL pointer to memcpy() without validating the zero-size condition, resulting in undefined behavior and process termination, leading to denial of service.

CVSS Vector

References

• https://github.com/AcademySoftwareFoundation/openexr/issues/2612
• https://github.com/AcademySoftwareFoundation/openexr/pull/2615
• https://github.com/AcademySoftwareFoundation/openexr/pull/2615/changes/70ddecfe82d2566f3776b8ed923939afd47baca2
• https://github.com/AcademySoftwareFoundation/openexr/issues/2612