{"id":"CVE-2026-112392","summary":"Pillow: NULL dereference in ImagingExpand via rank filters on zero-size images","details":"Pillow is a Python imaging library. Prior to 13.0.0, Pillow's rank-based filters can dereference invalid image storage for a zero-size image. ImagingExpand() allocates a non-empty output and then faults while replicating edges by reading the first pixel from empty input storage; ImagingRankFilter is never reached. An attacker can supply or cause creation of a zero-size image to an application that applies a rank, median, minimum, or maximum filter. This causes a native process crash. This issue is fixed in version 13.0.0.","aliases":["GHSA-27h8-gf7j-v5hc"],"modified":"2026-10-21T09:40:00.814867603Z","published":"2026-10-19T21:17:18.908Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-476"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112392.json","unresolved_ranges":[{"extracted_events":[{"strategy":"StringRangeExpression","range":[{"fixed":"13.0.0"}],"source":"AFFECTED_FIELD"}]},{"extracted_events":[{"range":[{"fixed":"13.0.0"},{"fixed":"13.0.0"}],"source":"DESCRIPTION"}]}]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112392.json"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/443e3130a8c11594fd0e296afad497e11e678961"},{"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-27h8-gf7j-v5hc"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112392"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python-pillow/pillow","events":[{"introduced":"0"},{"fixed":"443e3130a8c11594fd0e296afad497e11e678961"},{"fixed":"293218ad059d994baf1777d882911bed6a49704a"}],"database_specific":{"extracted_events":[{"range":[{"fixed":"443e3130a8c11594fd0e296afad497e11e678961"}],"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":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112392.json","vanir_signatures":[{"source":"https://github.com/python-pillow/pillow/commit/443e3130a8c11594fd0e296afad497e11e678961","target":{"file":"src/libImaging/Filter.c"},"deprecated":false,"digest":{"threshold":0.9,"line_hashes":["196399535581879267310953059482491282926","12814397595928380787886973394094060504","251432849317812628624011796485902874267","40000440866953791018242107954841481979","182497242432610203727608617677066137918"]},"id":"CVE-2026-112392-3a3e5e17","signature_type":"Line","signature_version":"v1"},{"source":"https://github.com/python-pillow/pillow/commit/443e3130a8c11594fd0e296afad497e11e678961","target":{"function":"ImagingExpand","file":"src/libImaging/Filter.c"},"deprecated":false,"digest":{"function_hash":"130547861730830276969221616576797181140","length":1324},"id":"CVE-2026-112392-e3ac6939","signature_type":"Function","signature_version":"v1"}],"vanir_signatures_modified":"2026-10-21T09:40:00Z"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}