CVE-2016-8638

Severity: critical (CVSS 9.1 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-07-12 · updated 2026-06-17
Weakness: CWE-384

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."

Affected products

Ipsilon Project Ipsilon: 1.0.0, 1.0.1, 1.0.2, 1.1.0, 1.1.1, 1.2.0 (+2)

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
https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461c
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
https://pagure.io/ipsilon/c/511fa8b7001c2f9a42301aa1d4b85aaf170a461c

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