{"cve":"CVE-2016-8638","nvd":{"published":"2017-07-12T13:29:00.190","modified":"2026-06-17T00:54:39.553","status":"Modified","description":"A vulnerability in ipsilon 2.0 before 2.0.2, 1.2 before 1.2.1, 1.1 before 1.1.2, and 1.0 before 1.0.3 was found that allows attacker to log out active sessions of other users.  This issue is related to how it tracks sessions, and allows an unauthenticated attacker to view and terminate active sessions from other users. It is also called a \"SAML2 multi-session vulnerability.\"","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","score":9.1},"cwes":["CWE-384"],"references":["http://rhn.redhat.com/errata/RHSA-2016-2809.html","http://www.securityfocus.com/bid/94439","https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8638","https://ipsilon-project.org/advisory/CVE-2016-8638.txt","https://ipsilon-project.org/release/2.1.0.html"],"products":["ipsilon_project:ipsilon"],"source":"nvd","synced_at":"2026-10-19T20:43:44.556243339+00:00"},"epss":{"cve":"CVE-2016-8638","score":0.02136,"percentile":0.82016,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-376m-3rm2-9jm6","url":"https://osv.dev/vulnerability/GHSA-376m-3rm2-9jm6","summary":"Session Fixation in ipsilon","modified":"2026-10-27T17:45:04.012363817Z","packages":[{"ecosystem":"PyPI","name":"ipsilon","purl":"pkg:pypi/ipsilon","ranges":[">=2.0.0 <2.0.2"],"fixed":["2.0.2"]},{"ecosystem":"PyPI","name":"ipsilon","purl":"pkg:pypi/ipsilon","ranges":[">=1.2.0 <1.2.1"],"fixed":["1.2.1"]},{"ecosystem":"PyPI","name":"ipsilon","purl":"pkg:pypi/ipsilon","ranges":[">=1.1.0 <1.1.2"],"fixed":["1.1.2"]},{"ecosystem":"PyPI","name":"ipsilon","purl":"pkg:pypi/ipsilon","ranges":[">=1.0.0 <1.0.3"],"fixed":["1.0.3"]}]},{"id":"PYSEC-2026-360","url":"https://osv.dev/vulnerability/PYSEC-2026-360","summary":"Session Fixation in ipsilon","modified":"2026-07-02T13:00:07.935493576Z","packages":[{"ecosystem":"PyPI","name":"ipsilon","purl":"pkg:pypi/ipsilon","ranges":[">=1.0.0 <1.0.3",">=1.1.0 <1.1.2",">=2.0.0 <2.0.2",">=1.2.0 <1.2.1"],"fixed":["1.0.3","1.1.2","2.0.2","1.2.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}