CVE-2026-41069

Description

libheif is a HEIF and AVIF file format decoder and encoder. In versions 1.21.2 and prior, a malformed HEIF sequence file can trigger an out-of-bounds read in core sequence parsing logic, causing DoS. A malformed file can have stco.entry_count == 0 (creating no chunks) while still passing validation because saio.entry_count == 0 matches, but with saiz.sample_count > 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.

Traduire en français

Produits concernés

• strukturag libheif
• Struktur libheif

Scores CVSS

Faiblesses (CWE)

• CWE-125
• CWE-476

Références

• https://github.com/strukturag/libheif/releases/tag/v1.22.0 ProductRelease Notes
• https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r ExploitVendor Advisory
• https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r ExploitVendor Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories