{"apiVersion":"1.0","identifier":"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.","publishedAt":"2026-05-22T21:16:43","lastModifiedAt":null,"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-41069","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","epssProbability":0.00253,"riskScore":0.66,"affectedProduct":"libheif","affectedVersions":"<=1.21.2","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-41069","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-41069","en":"https://www.redsauce.net/en/cves/CVE-2026-41069","fr":"https://www.redsauce.net/fr/cves/CVE-2026-41069","pt":"https://www.redsauce.net/pt/cves/CVE-2026-41069","de":"https://www.redsauce.net/de/cves/CVE-2026-41069","sk":"https://www.redsauce.net/sk/cves/CVE-2026-41069","el":"https://www.redsauce.net/el/cves/CVE-2026-41069"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-41069"}}