{"id":"CVE-2026-41069","summary":"libheif allows Out-of-bounds vector access leading to invalid dereference (DoS)","details":"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 \u003e 0 the SampleAuxInfoReader constructor still enters its loop. This leads to an out-of-bounds dereference on the empty chunks[0] in chunked mode.","aliases":["GHSA-p82x-fpmv-576r"],"modified":"2026-07-15T20:54:37.577209Z","published":"2026-05-22T20:49:16.735Z","related":["SUSE-SU-2026:22153-1","SUSE-SU-2026:2622-1","openSUSE-SU-2026:10878-1","openSUSE-SU-2026:20974-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-125","CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41069.json"},"references":[{"type":"WEB","url":"https://github.com/strukturag/libheif/releases/tag/v1.22.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41069.json"},{"type":"ADVISORY","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-p82x-fpmv-576r"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41069"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/strukturag/libheif","events":[{"introduced":"0"},{"fixed":"0c81a846b7401dbdb7118afd0761057f21e43511"}],"database_specific":{"cpe":"cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.22.0"}],"source":["AFFECTED_FIELD","CPE_RANGE","REFERENCES"]}}],"versions":["v1.21.2","v1.21.1","v1.21.0","v1.20.1","v1.20.0","v1.19.5","v1.19.4","v1.19.3","v1.19.2","v1.19.1","v1.19.0","v1.18.0","v1.18.0-rc1","v1.17.6","v1.17.5","v1.17.4","v1.17.3","v1.17.2","v1.17.1","v1.17.0","v1.16.2","v1.16.1","v1.16.0","v1.15.2","v1.15.1","v1.15.0","v1.14.2","v1.14.1","v1.14.0","v1.13.0","v1.12.0","v1.11.0","v1.10.0","v1.9.1","v1.9.0","v1.8.0","v1.7.0","v1.3.2","v1.3.1","v1.3.0","v1.2.0","v1.1.0"],"database_specific":{"vanir_signatures":[{"id":"CVE-2026-41069-91619f1d","signature_type":"Line","signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/0c81a846b7401dbdb7118afd0761057f21e43511","target":{"file":"tests/uncompressed_box.cc"},"deprecated":false,"digest":{"line_hashes":["175107675317900759648359576881034358256","220432159010798240840908416937024023837","268268967745545109707798594937166387611","253707932335489477155115861206639265538","199679408075604976163979654915891773303","175107675317900759648359576881034358256","220432159010798240840908416937024023837","268268967745545109707798594937166387611","286778284410146987248233194002847271266","178248309108630471590778685235254536836"],"threshold":0.9}}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41069.json","vanir_signatures_modified":"2026-07-15T20:54:37Z"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}