CVE-2026-5673 — Libtheora: libtheora: denial of service or information disclosure via malformed avi file processing
A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file()…
Published: 2026-04-06 · CVSS: 5.6 · CVSS 3.1
A flaw was found in libtheora. This heap-based out-of-bounds read vulnerability exists within the AVI (Audio Video Interleave) parser, specifically in the avi_parse_input_file() function. A local attacker could exploit this by tricking a user into opening a specially crafted AVI file containing a truncated header sub-chunk. This could lead to a denial-of-service (application crash) or potentially leak sensitive information from the heap.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7