{"id":"CVE-2026-112395","summary":"Pillow tiled-TIFF decoder reads past tile buffer in copy4 (Unpack.c:1290)","details":"Pillow is a Python imaging library. From 8.2.0 until 13.0.0, Pillow's tiled-TIFF decoder can read past the tile buffer while copying four-byte pixels. In _decodeTile, libtiff can return a tile allocation smaller than the required row stride multiplied by the tile length, and Pillow's stride-and-copy loop walks beyond that allocation. An attacker can supply a crafted tiled TIFF to an application that loads it. This can expose adjacent heap data in pixels or crash the process. This issue is fixed in version 13.0.0.","aliases":["GHSA-462x-pgg6-55fp"],"modified":"2026-10-21T09:40:01.495227022Z","published":"2026-10-19T20:59:15.098Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-122"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112395.json","unresolved_ranges":[{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StringRangeExpression","range":[{"introduced":"8.2.0"},{"fixed":"13.0.0"}]}]},{"extracted_events":[{"range":[{"fixed":"13.0.0"}],"source":"DESCRIPTION"}]}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112395.json"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/76869efdbbf2ad7dccd7536520fb61b7a00ab61e"},{"type":"WEB","url":"https://github.com/python-pillow/Pillow/releases/tag/13.0.0"},{"type":"ADVISORY","url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-462x-pgg6-55fp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112395"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python-pillow/pillow","events":[{"introduced":"0"},{"fixed":"76869efdbbf2ad7dccd7536520fb61b7a00ab61e"},{"fixed":"293218ad059d994baf1777d882911bed6a49704a"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"76869efdbbf2ad7dccd7536520fb61b7a00ab61e"}],"source":"REFERENCES_COMMIT"},{"range":[{"fixed":"293218ad059d994baf1777d882911bed6a49704a"}],"source":"REFERENCES_TAG","original_tag":"13.0.0"}]}}],"versions":["12.3.0","12.2.0","12.1.0","12.0.0","11.3.0","11.2.1","11.1.0","11.0.0","10.4.0","10.3.0","10.2.0","10.1.0","10.0.0","9.5.0","9.4.0","9.3.0","9.2.0","9.1.0","9.0.0","8.4.0","8.3.0","8.2.0","8.1.0","8.0.0","7.2.0","7.1.0","7.0.0","6.2.0","6.1.0","6.0.0","5.4.0","5.3.0","5.2.0","5.1.0","5.0.0","4.3.0","4.2.0","4.1.0","4.0.0","4.0.0a","3.4.0","3.3.0","3.2.0","3.1.0","3.1.0-rc1","2.9.0","2.9.0.dev2","2.9.0.dev1","2.9.0.dev0","2.8.1","2.8.0","2.7.0","2.5.0","2.3.0","2.2.1","2.2.0","2.1.0","2.0.0","1.7.8","1.7.7","1.2","1.0"],"database_specific":{"vanir_signatures":[{"signature_type":"Function","signature_version":"v1","source":"https://github.com/python-pillow/pillow/commit/76869efdbbf2ad7dccd7536520fb61b7a00ab61e","target":{"file":"src/libImaging/TiffDecode.c","function":"_decodeTile"},"deprecated":false,"digest":{"function_hash":"201485030498429415687306219681830104572","length":1722},"id":"CVE-2026-112395-1176e2e7"},{"signature_type":"Line","signature_version":"v1","source":"https://github.com/python-pillow/pillow/commit/76869efdbbf2ad7dccd7536520fb61b7a00ab61e","target":{"file":"src/libImaging/TiffDecode.c"},"deprecated":false,"digest":{"line_hashes":["110576601368750688772104129151745617387","202954312977746917856849100868621696","28904632620288533449476229609673813484","49537509962737632334706805469588647837","260897233094423499822943560726398440845","164661162145508205100894650171527718461","227518659177138961141126753301706265304","143303606416399960199578382961820983883","21079270631945509476378893280329369903","85609795275462547379522974371445079306","53216074465800800867899052000145992534","319633226966782073511939413923117689476","120481687846647613562656795275153255125","253473309681101918563264691779815017415","319802456348554386449421583436135261792"],"threshold":0.9},"id":"CVE-2026-112395-5d92d656"},{"source":"https://github.com/python-pillow/pillow/commit/76869efdbbf2ad7dccd7536520fb61b7a00ab61e","target":{"function":"_decodeAsRGBA","file":"src/libImaging/TiffDecode.c"},"deprecated":false,"digest":{"length":1789,"function_hash":"92806996912574492579404416982792019172"},"id":"CVE-2026-112395-8a230dcf","signature_type":"Function","signature_version":"v1"}],"vanir_signatures_modified":"2026-10-21T09:40:01Z","source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112395.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"}]}