CVE-2026-62291 libheif: Heap out of bounds write in libheif uncompressed encoder when writing images with mismatched auxiliary alpha dimensions

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted image sequence with a 2x2 primary plane and a 256x256 auxiliary alpha plane can cause attacker-controlled heap corruption during a normal decode and re-encode workflow. TrackVisual::decodenextimagesample...

The vulnerability of the OpenJPEG library for image encoding and decoding, related to the pointer to zero, allows a malicious actor to trigger a service failure.

The vulnerability of the OpenJPEG library for image encoding and decoding is related to the assignment of a null pointer in the openjp2/dwt.c file. Exploiting this vulnerability could allow an attacker to cause a service failure remotely...