{"id":"CVE-2017-1000433","aliases":["GHSA-924m-4pmx-c67h","PYSEC-2018-48"],"url":"https://o3.security/vulnerability/CVE-2017-1000433","summary":"pysaml2 Improper Authentication vulnerability","details":"pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.","published":"2018-01-02T23:29:00.337Z","modified":"2026-10-24T10:49:26.706128616Z","cvss":{"score":8.1,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":{"score":0.02541,"percentile":0.8418,"asOf":"2026-09-16"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pysaml2","fixedVersion":"4.5.0"}],"fix":{"url":"https://github.com/IdentityPython/pysaml2/pull/454","label":"IdentityPython/pysaml2#454"},"references":[{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00000.html"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2021/02/msg00038.html"},{"type":"REPORT","url":"https://security.gentoo.org/glsa/201801-11"},{"type":"FIX","url":"https://github.com/rohe/pysaml2/issues/451"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-1000433"},{"type":"WEB","url":"https://github.com/IdentityPython/pysaml2/pull/454"},{"type":"WEB","url":"https://github.com/IdentityPython/pysaml2/commit/6312a41e037954850867f29d329e5007df1424a5"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-924m-4pmx-c67h"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/pysaml2/PYSEC-2018-48.yaml"},{"type":"PACKAGE","url":"https://github.com/rohe/pysaml2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:49:26.706128616Z"}}