{"id":"CVE-2026-48029","summary":"libheif: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow","details":"libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.","aliases":["GHSA-6x5f-qchq-cxqv"],"modified":"2026-08-12T16:09:40.584695Z","published":"2026-07-22T14:13:27.879Z","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-191"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48029.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48029.json"},{"type":"ADVISORY","url":"https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48029"},{"type":"FIX","url":"https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/strukturag/libheif","events":[{"introduced":"c4e4657dcf6bcc06e934632f97736f7c78dbff9e"},{"fixed":"0c81a846b7401dbdb7118afd0761057f21e43511"},{"fixed":"e523ec0bf379110b7c33d4c159f8b1202d332157"}],"database_specific":{"extracted_events":[{"introduced":"1.19.0"},{"fixed":"1.22.0"}],"source":["CPE_RANGE","REFERENCES"],"cpe":"cpe:2.3:a:struktur:libheif:*:*:*:*:*:*:*:*"}}],"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"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48029.json","vanir_signatures_modified":"2026-08-12T16:09:40Z","vanir_signatures":[{"deprecated":false,"digest":{"line_hashes":["219672841497125228837406579397721311186","315779767215743454278419725292135505629","215835686115960783367434370615845683380","220195703957652418608139017556705508485","284684120236742493951222199338408499535","291911574542756313538833287141925065596","133957057838998640717971264815759942744","158249638131538298481729105262811394233","160379433229875705621296413893020127366","329569414691431598912517690362946350890","73155902000559147788854875555204618317"],"threshold":0.9},"id":"CVE-2026-48029-6179d178","signature_type":"Line","signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157","target":{"file":"tests/grid_tile_missing.cc"}},{"digest":{"line_hashes":["175107675317900759648359576881034358256","220432159010798240840908416937024023837","268268967745545109707798594937166387611","253707932335489477155115861206639265538","199679408075604976163979654915891773303","175107675317900759648359576881034358256","220432159010798240840908416937024023837","268268967745545109707798594937166387611","286778284410146987248233194002847271266","178248309108630471590778685235254536836"],"threshold":0.9},"id":"CVE-2026-48029-91619f1d","signature_type":"Line","signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/0c81a846b7401dbdb7118afd0761057f21e43511","target":{"file":"tests/uncompressed_box.cc"},"deprecated":false},{"signature_type":"Function","signature_version":"v1","source":"https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157","target":{"file":"libheif/image-items/image_item.cc","function":"ImageItem::transform_requested_tile_position_to_original_tile_position"},"deprecated":false,"digest":{"function_hash":"101919996153013846005192198994109606177","length":1278},"id":"CVE-2026-48029-ace1db76"},{"target":{"file":"libheif/image-items/image_item.cc"},"deprecated":false,"digest":{"line_hashes":["210117582881865826027694516329891578567","310864928099286494627115651940640439123","214711710888286477857043561187576557234","231462530368041100495367541668300113017","303020485749098350307795373176467076626","328099988574941819655366579322791715068","225017007332046956572453292407532612614","68674642594692389567704831319552718049","303971659695796642572985008411981253680","41371416608160114851679536515213197864","208032861094950670939479404550127845063","49515022252517102417074625220623554131","28286795811453010450669689977410935712","266223978065385515281774005924802299117","175934310551840688475386156401427485789","29117612320120474489142139412262744667","5306951783107611777627684941394785901","208032861094950670939479404550127845063","261706219315416336770573550838040632491","289684133007866095107926125875164088483","323407937391011148087911232621786152854","307008051018095746719216087304102477491","82053225423708514858267130413144370990","314662921962429445904903299064041341331","301162486735782784892137528069119439043","284114789844196746649792317052669140320","280250846371260273203496000182600501637","222621235650153467546053501785910134104","290175884920585446034084865117122461156","28461869088389044711965001472443274683","114663818581261751624540330828840247321"],"threshold":0.9},"id":"CVE-2026-48029-c40a27ea","signature_type":"Line","signature_version":"v1","source":"https://github.com/strukturag/libheif/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