{"id":"PYSEC-2026-3909","summary":"PyOD persistence.load deserializes untrusted artifacts before validation","details":"A vulnerability was detected in yzhao062 pyod 3.5.0/3.5.1/3.5.2. Affected is the function pyod.utils.persistence.load of the file pyod/utils/persistence.py. Performing a manipulation of the argument path results in deserialization. The attack can be initiated remotely. The pull request to fix this issue requires some minor changes.","aliases":["CVE-2026-15529","GHSA-997v-r4v7-9f3g"],"modified":"2026-09-10T12:15:12.709425429Z","published":"2026-09-10T09:44:50.448688Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-15529"},{"type":"WEB","url":"https://github.com/yzhao062/pyod/issues/697"},{"type":"WEB","url":"https://github.com/yzhao062/pyod/pull/698"},{"type":"WEB","url":"https://github.com/yzhao062/pyod/commit/16e6e3ad8921a4e18ccc8c2afe474db7d002c001"},{"type":"PACKAGE","url":"https://github.com/yzhao062/pyod"},{"type":"WEB","url":"https://github.com/yzhao062/pyod/releases/tag/v3.6.2"},{"type":"WEB","url":"https://pypi.org/project/pyod/3.6.2"},{"type":"WEB","url":"https://vuldb.com/cve/CVE-2026-15529"},{"type":"WEB","url":"https://vuldb.com/submit/854559"},{"type":"WEB","url":"https://vuldb.com/vuln/377872"},{"type":"WEB","url":"https://vuldb.com/vuln/377872/cti"},{"type":"PACKAGE","url":"https://pypi.org/project/pyod"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-997v-r4v7-9f3g"}],"affected":[{"package":{"name":"pyod","ecosystem":"PyPI","purl":"pkg:pypi/pyod"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"3.6.2"}]}],"versions":["3.5.0","3.5.1","3.5.2","3.5.4","3.6.0","3.6.1"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/pyod/PYSEC-2026-3909.yaml"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"}]}