{"id":"CVE-2025-8291","details":"The 'zipfile' module would not check the validity of the ZIP64 End of\nCentral Directory (EOCD) Locator record offset value would not be used to\nlocate the ZIP64 EOCD record, instead the ZIP64 EOCD record would be\nassumed to be the previous record in the ZIP archive. This could be abused\nto create ZIP archives that are handled differently by the 'zipfile' module\ncompared to other ZIP implementations.\n\n\nRemediation maintains this behavior, but checks that the offset specified\nin the ZIP64 EOCD Locator record matches the expected value.","aliases":["BIT-libpython-2025-8291","BIT-python-2025-8291","BIT-python-min-2025-8291","GHSA-hhv7-p4pg-wm6p","PSF-2025-12"],"modified":"2026-04-02T13:07:52.282459Z","published":"2025-10-07T18:16:00.317Z","related":["ALSA-2025:23323","ALSA-2025:23342","ALSA-2025:23530","ALSA-2025:23940","ALSA-2026:0123","CGA-38xq-jhr9-7p8p","SUSE-SU-2025:21199-1","SUSE-SU-2025:21207-1","SUSE-SU-2025:4221-1","SUSE-SU-2025:4257-1","SUSE-SU-2025:4257-2","SUSE-SU-2025:4258-1","SUSE-SU-2025:4277-1","SUSE-SU-2025:4297-1","SUSE-SU-2025:4313-1","SUSE-SU-2025:4352-1","SUSE-SU-2025:4368-1","SUSE-SU-2025:4389-1","SUSE-SU-2025:4398-1","SUSE-SU-2025:4487-1","SUSE-SU-2026:0133-1","SUSE-SU-2026:20125-1","SUSE-SU-2026:20154-1","openSUSE-SU-2025:15713-1","openSUSE-SU-2025:15742-1","openSUSE-SU-2025:15748-1","openSUSE-SU-2025:15750-1","openSUSE-SU-2025:15760-1","openSUSE-SU-2025:15768-1","openSUSE-SU-2025:15792-1","openSUSE-SU-2026:20081-1"],"references":[{"type":"WEB","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/QECOPWMTH4VPPJAXAH2BGTA4XADOP62G/"},{"type":"ADVISORY","url":"https://github.com/psf/advisory-database/blob/main/advisories/python/PSF-2025-12.json"},{"type":"ADVISORY","url":"https://github.com/google/security-research/security/advisories/GHSA-hhv7-p4pg-wm6p"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/139700"},{"type":"FIX","url":"https://github.com/python/cpython/commit/1d29afb0d6218aa8fb5e1e4a6133a4778d89bb46"},{"type":"FIX","url":"https://github.com/python/cpython/commit/76437ac248ad8ca44e9bf697b02b1e2241df2196"},{"type":"FIX","url":"https://github.com/python/cpython/commit/8392b2f0d35678407d9ce7d95655a5b77de161b4"},{"type":"FIX","url":"https://github.com/python/cpython/pull/139702"},{"type":"FIX","url":"https://github.com/python/cpython/commit/162997bb70e067668c039700141770687bc8f267"},{"type":"FIX","url":"https://github.com/python/cpython/commit/333d4a6f4967d3ace91492a39ededbcf3faa76a6"},{"type":"FIX","url":"https://github.com/python/cpython/commit/bca11ae7d575d87ed93f5dd6a313be6246e3e388"},{"type":"FIX","url":"https://github.com/python/cpython/commit/d11e69d6203080e3ec450446bfed0516727b85c3"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"162997bb70e067668c039700141770687bc8f267"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"1d29afb0d6218aa8fb5e1e4a6133a4778d89bb46"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"333d4a6f4967d3ace91492a39ededbcf3faa76a6"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"76437ac248ad8ca44e9bf697b02b1e2241df2196"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"8392b2f0d35678407d9ce7d95655a5b77de161b4"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"bca11ae7d575d87ed93f5dd6a313be6246e3e388"}]},{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"fixed":"d11e69d6203080e3ec450446bfed0516727b85c3"}]}],"versions":["2.0","2.1","2.2","2.3","2.4","2.5","2.6","2.7","3.0","3.1","3.2","3.3","3.4","3.5","3.6","3.7","3.8","3.9","legacy-trunk","v0.9.8","v0.9.9","v1.0.1","v1.0.2","v1.1","v1.1.1","v1.2","v1.2b1","v1.2b2","v1.2b3","v1.2b4","v1.3","v1.3b1","v1.4","v1.4b1","v1.4b2","v1.4b3","v1.5","v1.5.1","v1.5.2","v1.5.2a1","v1.5.2a2","v1.5.2b1","v1.5.2b2","v1.5.2c1","v1.5a1","v1.5a2","v1.5a3","v1.5a4","v1.5b1","v1.5b2","v1.6a1","v1.6a2","v2.0","v2.0.1","v2.0.1c1","v2.0b1","v2.0b2","v2.0c1","v2.1","v2.1.1","v2.1.1c1","v2.1.2","v2.1.2c1","v2.1.3","v2.1a1","v2.1a2","v2.1b1","v2.1b2","v2.1c1","v2.1c2","v2.2","v2.2.1","v2.2.1c1","v2.2.1c2","v2.2.2","v2.2.2b1","v2.2.3","v2.2.3c1","v2.2a3","v2.3.1","v2.3.2","v2.3.2c1","v2.3.3","v2.3.3c1","v2.3.4","v2.3.4c1","v2.3.5","v2.3.5c1","v2.3.6","v2.3.6c1","v2.3.7","v2.3.7c1","v2.3c1","v2.3c2","v2.4","v2.4.1","v2.4.1c1","v2.4.1c2","v2.4.2","v2.4.2c1","v2.4.3","v2.4.3c1","v2.4.4","v2.4.4c1","v2.4.5","v2.4.5c1","v2.4.6","v2.4.6c1","v2.4a1","v2.4a2","v2.4a3","v2.4b1","v2.4b2","v2.4c1","v2.5","v2.5.1","v2.5.1c1","v2.5.2","v2.5.2c1","v2.5.3","v2.5.3c1","v2.5.4","v2.5.5","v2.5.5c1","v2.5.5c2","v2.5.6","v2.5.6c1","v2.5a0","v2.5a1","v2.5a2","v2.5b1","v2.5b2","v2.5b3","v2.5c1","v2.5c2","v2.6","v2.6.1","v2.6.2","v2.6.2c1","v2.6.3","v2.6.3rc1","v2.6.4","v2.6.4rc1","v2.6.4rc2","v2.6.5","v2.6.5rc1","v2.6.5rc2","v2.6.6","v2.6.6rc1","v2.6.6rc2","v2.6.7","v2.6.8","v2.6.8rc1","v2.6.8rc2","v2.6.9","v2.6.9rc1","v2.6a1","v2.6a2","v2.6a3","v2.6b1","v2.6b2","v2.6b3","v2.6rc1","v2.6rc2","v2.7","v2.7.1","v2.7.10","v2.7.10rc1","v2.7.11","v2.7.11rc1","v2.7.12","v2.7.12rc1","v2.7.13","v2.7.13rc1","v2.7.14","v2.7.14rc1","v2.7.15","v2.7.15rc1","v2.7.16","v2.7.16rc1","v2.7.17","v2.7.17rc1","v2.7.18","v2.7.18rc1","v2.7.1rc1","v2.7.2","v2.7.2rc1","v2.7.3","v2.7.3rc1","v2.7.3rc2","v2.7.4","v2.7.4rc1","v2.7.5","v2.7.6","v2.7.6rc1","v2.7.7","v2.7.7rc1","v2.7.8","v2.7.9","v2.7.9rc1","v2.7a1","v2.7a2","v2.7a3","v2.7a4","v2.7b1","v2.7b2","v2.7rc1","v2.7rc2","v3.0","v3.0.1","v3.0a1","v3.0a2","v3.0a3","v3.0a4","v3.0a5","v3.0b1","v3.0b2","v3.0b3","v3.0rc1","v3.0rc2","v3.0rc3","v3.1","v3.1.1","v3.1.1rc1","v3.1.2","v3.1.2rc1","v3.1.3","v3.1.3rc1","v3.1.4","v3.1.4rc1","v3.1.5","v3.1.5rc1","v3.1.5rc2","v3.10.0","v3.10.0a1","v3.10.0a2","v3.10.0a3","v3.10.0a4","v3.10.0a5","v3.10.0a6","v3.10.0a7","v3.10.0b1","v3.10.0b2","v3.10.0b3","v3.10.0b4","v3.10.0rc1","v3.10.0rc2","v3.10.1","v3.10.10","v3.10.11","v3.10.12","v3.10.13","v3.10.14","v3.10.15","v3.10.16","v3.10.17","v3.10.18","v3.10.19","v3.10.2","v3.10.20","v3.10.3","v3.10.4","v3.10.5","v3.10.6","v3.10.7","v3.10.8","v3.10.9","v3.11.0","v3.11.0a1","v3.11.0a2","v3.11.0a3","v3.11.0a4","v3.11.0a5","v3.11.0a6","v3.11.0a7","v3.11.0b1","v3.11.0b2","v3.11.0b3","v3.11.0b4","v3.11.0b5","v3.11.0rc1","v3.11.0rc2","v3.11.1","v3.11.10","v3.11.11","v3.11.12","v3.11.13","v3.11.14","v3.11.15","v3.11.2","v3.11.3","v3.11.4","v3.11.5","v3.11.6","v3.11.7","v3.11.8","v3.11.9","v3.12.0","v3.12.0a1","v3.12.0a2","v3.12.0a3","v3.12.0a4","v3.12.0a5","v3.12.0a6","v3.12.0a7","v3.12.0b1","v3.12.0b2","v3.12.0b3","v3.12.0b4","v3.12.0rc1","v3.12.0rc2","v3.12.0rc3","v3.12.1","v3.12.10","v3.12.11","v3.12.12","v3.12.13","v3.12.2","v3.12.3","v3.12.4","v3.12.5","v3.12.6","v3.12.7","v3.12.8","v3.12.9","v3.13.0","v3.13.0a1","v3.13.0a2","v3.13.0a3","v3.13.0a4","v3.13.0a5","v3.13.0a6","v3.13.0b1","v3.13.0b2","v3.13.0b3","v3.13.0b4","v3.13.0rc1","v3.13.0rc2","v3.13.0rc3","v3.13.1","v3.13.10","v3.13.11","v3.13.12","v3.13.2","v3.13.3","v3.13.4","v3.13.5","v3.13.6","v3.13.7","v3.13.8","v3.13.9","v3.14.0","v3.14.0a1","v3.14.0a2","v3.14.0a3","v3.14.0a4","v3.14.0a5","v3.14.0a6","v3.14.0a7","v3.14.0b1","v3.14.0b2","v3.14.0b3","v3.14.0b4","v3.14.0rc1","v3.14.0rc2","v3.14.0rc3","v3.14.1","v3.14.2","v3.14.3","v3.15.0a1","v3.15.0a2","v3.15.0a3","v3.15.0a4","v3.15.0a5","v3.15.0a6","v3.15.0a7","v3.1a1","v3.1a2","v3.1b1","v3.1rc1","v3.1rc2","v3.2","v3.2.1","v3.2.1b1","v3.2.1rc1","v3.2.1rc2","v3.2.2","v3.2.2rc1","v3.2.3","v3.2.3rc1","v3.2.3rc2","v3.2.4","v3.2.4rc1","v3.2.5","v3.2.6","v3.2.6rc1","v3.2a1","v3.2a2","v3.2a3","v3.2a4","v3.2b1","v3.2b2","v3.2rc1","v3.2rc2","v3.2rc3","v3.3.0","v3.3.0a1","v3.3.0a2","v3.3.0a3","v3.3.0a4","v3.3.0b1","v3.3.0b2","v3.3.0rc1","v3.3.0rc2","v3.3.0rc3","v3.3.1","v3.3.1rc1","v3.3.2","v3.3.3","v3.3.3rc1","v3.3.3rc2","v3.3.4","v3.3.4rc1","v3.3.5","v3.3.5rc1","v3.3.5rc2","v3.3.6","v3.3.6rc1","v3.3.7","v3.3.7rc1","v3.4.0","v3.4.0a1","v3.4.0a2","v3.4.0a3","v3.4.0a4","v3.4.0b1","v3.4.0b2","v3.4.0b3","v3.4.0rc1","v3.4.0rc2","v3.4.0rc3","v3.4.1","v3.4.10","v3.4.10rc1","v3.4.1rc1","v3.4.2","v3.4.2rc1","v3.4.3","v3.4.3rc1","v3.4.4","v3.4.4rc1","v3.4.5","v3.4.5rc1","v3.4.6","v3.4.6rc1","v3.4.7","v3.4.7rc1","v3.4.8","v3.4.8rc1","v3.4.9","v3.4.9rc1","v3.5.0","v3.5.0a1","v3.5.0a2","v3.5.0a3","v3.5.0a4","v3.5.0b1","v3.5.0b2","v3.5.0b3","v3.5.0b4","v3.5.0rc1","v3.5.0rc2","v3.5.0rc3","v3.5.0rc4","v3.5.1","v3.5.10","v3.5.10rc1","v3.5.1rc1","v3.5.2","v3.5.2rc1","v3.5.3","v3.5.3rc1","v3.5.4","v3.5.4rc1","v3.5.5","v3.5.5rc1","v3.5.6","v3.5.6rc1","v3.5.7","v3.5.7rc1","v3.5.8","v3.5.8rc1","v3.5.8rc2","v3.5.9","v3.6.0","v3.6.0a1","v3.6.0a2","v3.6.0a3","v3.6.0a4","v3.6.0b1","v3.6.0b2","v3.6.0b3","v3.6.0b4","v3.6.0rc1","v3.6.0rc2","v3.6.1","v3.6.10","v3.6.10rc1","v3.6.11","v3.6.11rc1","v3.6.12","v3.6.13","v3.6.14","v3.6.15","v3.6.1rc1","v3.6.2","v3.6.2rc1","v3.6.2rc2","v3.6.3","v3.6.3rc1","v3.6.4","v3.6.4rc1","v3.6.5","v3.6.5rc1","v3.6.6","v3.6.6rc1","v3.6.7","v3.6.7rc1","v3.6.7rc2","v3.6.8","v3.6.8rc1","v3.6.9","v3.6.9rc1","v3.7.0","v3.7.0a1","v3.7.0a2","v3.7.0a3","v3.7.0a4","v3.7.0b1","v3.7.0b2","v3.7.0b3","v3.7.0b4","v3.7.0b5","v3.7.0rc1","v3.7.1","v3.7.10","v3.7.11","v3.7.12","v3.7.13","v3.7.14","v3.7.15","v3.7.16","v3.7.17","v3.7.1rc1","v3.7.1rc2","v3.7.2","v3.7.2rc1","v3.7.3","v3.7.3rc1","v3.7.4","v3.7.4rc1","v3.7.4rc2","v3.7.5","v3.7.5rc1","v3.7.6","v3.7.6rc1","v3.7.7","v3.7.7rc1","v3.7.8","v3.7.8rc1","v3.7.9","v3.8.0","v3.8.0a1","v3.8.0a2","v3.8.0a3","v3.8.0a4","v3.8.0b1","v3.8.0b2","v3.8.0b3","v3.8.0b4","v3.8.0rc1","v3.8.1","v3.8.10","v3.8.11","v3.8.12","v3.8.13","v3.8.14","v3.8.15","v3.8.16","v3.8.17","v3.8.18","v3.8.19","v3.8.1rc1","v3.8.2","v3.8.20","v3.8.2rc1","v3.8.2rc2","v3.8.3","v3.8.3rc1","v3.8.4","v3.8.4rc1","v3.8.5","v3.8.6","v3.8.6rc1","v3.8.7","v3.8.7rc1","v3.8.8","v3.8.8rc1","v3.8.9","v3.9.0","v3.9.0a1","v3.9.0a2","v3.9.0a3","v3.9.0a4","v3.9.0a5","v3.9.0a6","v3.9.0b1","v3.9.0b2","v3.9.0b3","v3.9.0b4","v3.9.0b5","v3.9.0rc1","v3.9.0rc2","v3.9.1","v3.9.10","v3.9.11","v3.9.12","v3.9.13","v3.9.14","v3.9.15","v3.9.16","v3.9.17","v3.9.18","v3.9.19","v3.9.1rc1","v3.9.2","v3.9.20","v3.9.21","v3.9.22","v3.9.23","v3.9.24","v3.9.25","v3.9.2rc1","v3.9.3","v3.9.4","v3.9.5","v3.9.6","v3.9.7","v3.9.8","v3.9.9"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-8291.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N"}]}