CVE-2026-21413: LibRaw: LibRaw: Arbitrary code execution via heap-based buffer overflow in lossless JPEG loading

Severity: Critical

CVSS Score: 9.8

A heap-based buffer overflow vulnerability exists in the lossless_jpeg_load_raw functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.