{"id":"DEBIAN-CVE-2026-112402","details":"Pillow is a Python imaging library. Prior to 13.0.0, Pillow can double free image memory when ImagingScaleAffine encounters a selective allocation failure. The affected fast path handles Transform.EXTENT or pure scale-and-translate Transform.AFFINE operations with the default NEAREST resampling. The output image allocation must succeed while the additional per-column lookup allocation fails, after which the error path deletes image storage that later cleanup releases again. An attacker who can drive such a large Image.transform() operation under memory pressure may trigger the failure. This can crash the process and may corrupt memory. This issue is fixed in version 13.0.0.","modified":"2026-10-20T11:00:06.098387344Z","published":"2026-10-20T10:47:39.292573136Z","upstream":["CVE-2026-112402"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-112402"}],"affected":[{"package":{"name":"pillow","ecosystem":"Debian:12","purl":"pkg:deb/debian/pillow?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["10.0.0-1","10.1.0-1","10.2.0-1","10.3.0-1","10.3.0-2","10.4.0-1","10.4.0-1.1","11.1.0-1","11.1.0-2","11.1.0-3","11.1.0-4","11.1.0-5","11.2.1-1","11.3.0-1","12.0.0-1","12.1.0-1","12.1.1-1","12.1.1-2","12.2.0-1","12.3.0-1","9.4.0-1.1","9.4.0-1.1+deb12u1","9.5.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112402.json"}},{"package":{"name":"pillow","ecosystem":"Debian:13","purl":"pkg:deb/debian/pillow?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.1.0-5","11.1.0-5+deb13u1","11.1.0-5+deb13u2","11.1.0-5+deb13u3","11.1.0-5+deb13u4","11.2.1-1","11.3.0-1","12.0.0-1","12.1.0-1","12.1.1-1","12.1.1-2","12.2.0-1","12.3.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112402.json"}},{"package":{"name":"pillow","ecosystem":"Debian:14","purl":"pkg:deb/debian/pillow?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["11.1.0-5","11.2.1-1","11.3.0-1","12.0.0-1","12.1.0-1","12.1.1-1","12.1.1-2","12.2.0-1","12.3.0-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-112402.json"}}],"schema_version":"1.9.0"}