{"id":"CVE-2026-112892","summary":"Pillow: MSP RLE decoder expands a tiny file into unbounded memory","details":"Pillow is a Python imaging library. From 4.1.0 until 13.0.0, Pillow's MSP RLE decoder can expand a small file into an unbounded in-memory buffer. The decoder writes run-length output to BytesIO without limiting expansion to the declared image size. An attacker can supply a crafted MSP image to an application that loads its pixels. This can exhaust memory and deny service even when the declared pixel count passes the decompression-bomb check. This issue is fixed in version 13.0.0.","aliases":["BIT-pillow-2026-112892","GHSA-gg2r-wvfm-q9rx"],"modified":"2026-10-30T12:27:01.042074913Z","published":"2026-10-19T21:35:25.797Z","related":["ALSA-2026:92639","openSUSE-SU-2026:12230-1"],"database_specific":{"cwe_ids":["CWE-409"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112892.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/python-pillow/Pillow/releases/tag/13.0.0"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112892.json"},{"type":"ADVISORY","url":"https://github.com/python-pillow/Pillow/security/advisories/GHSA-gg2r-wvfm-q9rx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112892"},{"type":"FIX","url":"https://github.com/python-pillow/Pillow/commit/5dcb630b9798efd91929cb873d677aeee6ed0bb3"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python-pillow/pillow","events":[{"introduced":"38eff7400426de4b1a0b0d3e88c552d695c89252"},{"fixed":"293218ad059d994baf1777d882911bed6a49704a"},{"fixed":"5dcb630b9798efd91929cb873d677aeee6ed0bb3"}],"database_specific":{"extracted_events":[{"range":[{"introduced":"4.1.0"},{"fixed":"13.0.0"}],"source":"CPE_RANGE","cpe":"cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*"},{"range":[{"fixed":"5dcb630b9798efd91929cb873d677aeee6ed0bb3"}],"source":"REFERENCES_COMMIT"},{"original_tag":"13.0.0","range":[{"fixed":"293218ad059d994baf1777d882911bed6a49704a"}],"source":"REFERENCES_TAG"}]}}],"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"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-112892.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}