{"id":"CVE-2026-3949","details":"A vulnerability was determined in strukturag libheif up to 1.21.2. This affects the function vvdec_push_data2 of the file libheif/plugins/decoder_vvdec.cc of the component HEIF File Parser. Executing a manipulation of the argument size can lead to out-of-bounds read. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. This patch is called b97c8b5f198b27f375127cd597a35f2113544d03. It is advisable to implement a patch to correct this issue.","modified":"2026-04-10T05:43:08.284387Z","published":"2026-03-11T19:16:05.297Z","related":["openSUSE-SU-2026:10460-1"],"references":[{"type":"WEB","url":"https://vuldb.com/?ctiid.350381"},{"type":"WEB","url":"https://vuldb.com/?id.350381"},{"type":"WEB","url":"https://vuldb.com/?submit.765979"},{"type":"WEB","url":"https://github.com/biniamf/pocs/tree/main/libheif_vvdec"},{"type":"WEB","url":"https://github.com/strukturag/libheif/"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/issues/1712"},{"type":"REPORT","url":"https://github.com/strukturag/libheif/issues/1712#issuecomment-3947938531"},{"type":"FIX","url":"https://github.com/strukturag/libheif/commit/b97c8b5f198b27f375127cd597a35f2113544d03"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/strukturag/libheif","events":[{"introduced":"0"},{"fixed":"b97c8b5f198b27f375127cd597a35f2113544d03"}]}],"versions":["v1.1.0","v1.10.0","v1.11.0","v1.12.0","v1.13.0","v1.14.0","v1.14.1","v1.14.2","v1.15.0","v1.15.1","v1.15.2","v1.16.0","v1.16.1","v1.16.2","v1.17.0","v1.17.1","v1.17.2","v1.17.3","v1.17.4","v1.17.5","v1.17.6","v1.18.0","v1.18.0-rc1","v1.19.0","v1.19.1","v1.19.2","v1.19.3","v1.19.4","v1.19.5","v1.2.0","v1.20.0","v1.20.1","v1.21.0","v1.21.1","v1.21.2","v1.3.0","v1.3.1","v1.3.2","v1.7.0","v1.8.0","v1.9.0","v1.9.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3949.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"}]}