CVE-2026-44663 OpenEXR: Integer overflow in the HTJ2K decoder leads to heap-buffer-overflow

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.11, an integer overflow in htundoimpl in src/lib/OpenEXRCore/internalht.cpp leads to a heap-buffer overflow when decoding a crafted...

CVE-2026-34589

A flaw was found in OpenEXR. The DWA lossy decoder, responsible for processing EXR image files, incorrectly handles large image widths. This occurs because temporary block pointers are constructed using signed 32-bit arithmetic, which can overflow. A remote attacker could exploit this by providin...

UBUNTU-CVE-2026-34589

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. Fo...

CVE-2026-34589 OpenEXR: DWA Lossy Decoder Heap Out-of-Bounds Write

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. Fo...