Heap-based Buffer Overflow

Overview Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the HTJ2K decoder. An attacker can execute arbitrary code or cause a denial of service by providing a crafted .exr file with HTJ2K compression and a channel width of 32768, which results in controlled data...

CVE-2026-34545

CVE-2026-34545 affects OpenEXR versions 3.4.0–3.4.6, where decoding an EXR file using HTJ2K compression with a channel width of 32768 can trigger a heap write overflow. The overflow occurs while decoding and writes beyond the output heap buffer, with a write primitive of 2 bytes per overflow iter...