{"schema_version":"1.9.0","id":"CVE-2026-7774","published":"2026-06-04T14:21:23.904Z","modified":"2026-09-04T18:25:56.481248386Z","aliases":["BIT-libpython-2026-7774","BIT-python-2026-7774","BIT-python-min-2026-7774","PSF-2026-26"],"related":["CGA-4fj7-28j9-5v6j","SUSE-SU-2026:23191-1","SUSE-SU-2026:23212-1","SUSE-SU-2026:3530-1","SUSE-SU-2026:3548-1","SUSE-SU-2026:3560-1","SUSE-SU-2026:3569-1","SUSE-SU-2026:3601-1","SUSE-SU-2026:3649-1","SUSE-SU-2026:3851-1","SUSE-SU-2026:3855-1","openSUSE-SU-2026:11101-1","openSUSE-SU-2026:11181-1","openSUSE-SU-2026:11426-1","openSUSE-SU-2026:11427-1","openSUSE-SU-2026:11428-1","openSUSE-SU-2026:11534-1"],"summary":"tarfile.data_filter path traversal bypass allows writing outside the extraction directory","details":"tarfile.data_filter could be bypassed using crafted link entries, including symlinks with empty or directory-like names, to redirect later archive members outside the intended extraction directory. This allowed a malicious tar archive to cause tarfile.extractall() to write files outside the destination directory, subject to the permissions of the extracting process.","affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/python/cpython","events":[{"introduced":"0"},{"introduced":"deaf509e8fc6e0363bd6f26d52ad42f976ec42f2"},{"introduced":"0fb18b02c8ad56299d6a2910be0bab8ad601ef24"},{"introduced":"60403a5409ff2c3f3b07dd2ca91a7a3e096839c7"},{"introduced":"ebf955df7a89ed0c7968f79faec1de49f61ed7cb"},{"introduced":"f31a89bb901067dd105b00cfa90523cf7ffdbbdd"},{"fixed":"3a19c2f0b3e91ce8f23d0cc64d4c9ee557823f24"},{"fixed":"41388c9cb160d0886d5ca00d2e6c8782608a4549"},{"fixed":"2abcf904b8dac8c999d2b3aac76681abb333798a"},{"fixed":"fd17997c3866d61e0e7bd8201b1d8f35b40a40bd"},{"fixed":"c63aec69bd59c55314c06c23f4c22c03de76fe45"},{"fixed":"94a64bbc6ce89644cf02b82c723d9cc37f6a1870"},{"fixed":"0478bd83d82b255e0f29f613367a59d261e7eaa2"},{"fixed":"0d28f5e46e151718972dfabd91205444d0037b6d"},{"fixed":"10a13bee3c24f9c62b602e696334ff2272a40efc"},{"fixed":"578411982c16f753f4893532510099ef665117da"},{"fixed":"5cf47a248c35c375d610b87b2f72fd1ed454b558"},{"fixed":"74cca9a92fb7d653e404843a56b8bdc7b0afdbbf"},{"fixed":"c063191cb7f9170f9565e305f8aa2b79ab2bf609"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"3.10.21"},{"introduced":"3.11.0"},{"fixed":"3.11.16"},{"introduced":"3.12.0"},{"fixed":"3.12.14"},{"introduced":"3.13.0"},{"fixed":"3.13.14"},{"introduced":"3.14.0"},{"fixed":"3.14.6"},{"introduced":"3.15.0a1"},{"fixed":"3.15.0b2"}],"source":["AFFECTED_FIELD","REFERENCES"]}}],"versions":["v3.14.5","v3.15.0b1","v3.14.5rc1","v3.13.13","v3.14.4","v3.12.13","v3.10.20","v3.11.15","v3.13.12","v3.14.3","v3.14.2","v3.13.11","v3.13.10","v3.14.1","v3.13.8","v3.11.14","v3.10.19","v3.12.12","v3.14.0","v3.13.7","v3.13.6","v3.13.5","v3.13.4","v3.11.13","v3.10.18","v3.12.11","v3.13.3","v3.11.12","v3.12.10","v3.10.17","v3.13.2","v3.12.9","v3.13.1","v3.12.8","v3.10.16","v3.11.11","v3.13.0","v3.12.7","v3.11.10","v3.10.15","v3.12.6","v3.12.5","v3.12.4","v3.12.3","v3.11.9","v3.10.14","v3.12.2","v3.11.8","v3.12.1","v3.11.7","v3.11.6","v3.12.0","v3.11.5","v3.10.13","v3.11.4","v3.10.12","v3.10.11","v3.11.3","v3.10.10","v3.11.2","v3.10.9","v3.11.1","v3.11.0rc2","v3.10.8","v3.10.7","v3.11.0rc1","v3.10.6","v3.11.0b5","v3.11.0b4","v3.10.5","v3.11.0b3","v3.11.0b2","v3.11.0b1","v3.11.0a7","v3.10.4","v3.10.3","v3.11.0a6","v3.11.0a5","v3.11.0a4","v3.10.2","v3.11.0a3","v3.10.1","v3.10.0rc2","v3.10.0rc1","v3.10.0b4","v3.10.0b3","v3.10.0b2","v3.10.0b1","v3.10.0a7","v3.10.0a1","v3.9.0a2","v3.7.0a2","v3.6.0b1","v3.6.0a3","v3.5.0b1","v3.5.0a4","v3.5.0a3","v3.5.0a2","v3.5.0a1","v3.4.0b3","v3.4.0b2","v3.4.0b1","v3.4.0a4","v3.4.0a3","v3.4.0a2","v3.4.0a1","v3.3.0rc3","v3.3.0rc2","v3.3.0rc1","v3.3.0b2","v3.3.0b1","v3.3.0a4","v3.3.0a3","v3.3.0a2","v3.2rc3","v3.2rc2","v3.2rc1","v3.2b2","v3.2b1","v3.2a4","v3.2a3","v3.2a2","v3.2a1","v3.1","v3.1rc2","v3.1rc1","v3.1b1","v3.1a2","v3.1a1","v3.0rc3","v3.0rc2","v3.0rc1","v3.0b3","v3.0b2","v3.0b1","v3.0a5","v3.0a4","v3.0a3","v3.0a2","v3.0a1","v2.4","v2.4c1","v2.4b2","v2.4b1","v2.4a3","v2.4a2","v2.4a1","v2.3c2","v2.3c1","v2.2a3","v2.1","v2.1c2","v2.1c1","v2.1b2","v2.1b1","v2.1a2","v2.1a1","v2.0","v2.0c1","v2.0b2","v2.0b1","v1.6a2","v1.6a1","v1.5.2","v1.5.2c1","v1.5.2b2","v1.5.2b1","v1.5.2a2","v1.5.2a1","v1.5.1","v1.5","v1.5b2","v1.5b1","v1.5a4","v1.5a3","v1.5a2","v1.5a1","v1.4","v1.4b3","v1.4b2","v1.4b1","v1.3","v1.3b1","v1.2","v1.2b4","v1.2b3","v1.2b2","v1.2b1","v1.1.1","v1.1","v1.0.2","v1.0.1","v0.9.9","v0.9.8"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-7774.json"}}],"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/04/9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7774.json"},{"type":"ADVISORY","url":"https://mail.python.org/archives/list/security-announce@python.org/thread/4FU62L2M6RMMHT2QPGQNPEHHUND7CEX5/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7774"},{"type":"REPORT","url":"https://github.com/python/cpython/issues/149486"},{"type":"FIX","url":"https://github.com/python/cpython/commit/0478bd83d82b255e0f29f613367a59d261e7eaa2"},{"type":"FIX","url":"https://github.com/python/cpython/commit/0d28f5e46e151718972dfabd91205444d0037b6d"},{"type":"FIX","url":"https://github.com/python/cpython/commit/10a13bee3c24f9c62b602e696334ff2272a40efc"},{"type":"FIX","url":"https://github.com/python/cpython/commit/578411982c16f753f4893532510099ef665117da"},{"type":"FIX","url":"https://github.com/python/cpython/commit/5cf47a248c35c375d610b87b2f72fd1ed454b558"},{"type":"FIX","url":"https://github.com/python/cpython/commit/74cca9a92fb7d653e404843a56b8bdc7b0afdbbf"},{"type":"FIX","url":"https://github.com/python/cpython/commit/c063191cb7f9170f9565e305f8aa2b79ab2bf609"},{"type":"FIX","url":"https://github.com/python/cpython/pull/149487"},{"type":"PACKAGE","url":"https://github.com/python/cpython"}],"database_specific":{"cna_assigner":"PSF","cwe_ids":["CWE-22"],"osv_generated_from":"https://github.com/CVEPr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