{"id":"CVE-2017-1000246","aliases":["GHSA-cq94-qf6q-mf2h","PYSEC-2017-26"],"url":"https://o3.security/vulnerability/CVE-2017-1000246","summary":"Pysaml2 improperly initializes encryption vector","details":"Python package pysaml2 version 4.4.0 and earlier reuses the initialization vector across encryptions in the IDP server, resulting in weak encryption of data.","published":"2017-11-17T04:29:00.513Z","modified":"2026-10-24T10:48:53.738006112Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"pysaml2","fixedVersion":"4.6.0"}],"fix":{"url":"https://github.com/IdentityPython/pysaml2/pull/519/commits/7323f5c20efb59424d853c822e7a26d1aa3e84aa","label":"IdentityPython/pysaml2#519"},"references":[{"type":"FIX","url":"https://github.com/rohe/pysaml2/issues/417"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2017-1000246"},{"type":"WEB","url":"https://github.com/IdentityPython/pysaml2/pull/519/commits/7323f5c20efb59424d853c822e7a26d1aa3e84aa"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/pysaml2/PYSEC-2017-26.yaml"},{"type":"PACKAGE","url":"https://github.com/rohe/pysaml2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-24T10:48:53.738006112Z"}}