CVE-2016-8638: Ipsilon Project Ipsilon

Critical severity, CVSS 9.1. EPSS: 2.1% chance of exploitation in the next 30 days.

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: version 1.0.0 only; version 1.0.1 only; version 1.0.2 only; version 1.1.0 only; version 1.1.1 only; version 1.2.0 only; …

Published 2017-07-12. Last modified 2026-06-17.