CVE-2026-5795: Eclipse Jetty

High severity, CVSS 7.4. EPSS: 0.6% chance of exploitation in the next 30 days.

In Eclipse Jetty, the class JASPIAuthenticator initiates the authentication checks, which set two ThreadLocal variable. Upon returning from the initial checks, there are conditions that cause an early return from the JASPIAuthenticator code without clearing those ThreadLocals. A subsequent request using the same thread inherits the ThreadLocal values, leading to a broken access control and privilege escalation.

Affected products

• Eclipse Jetty: from 9.4.0, up to and including 9.4.58; from 10.0.0, up to and including 10.0.26; from 11.0.0, up to and including 11.0.26; from 12.0.0, before 12.0.34 (fixed in 12.0.34); from 12.1.0, before 12.1.8 (fixed in 12.1.8)

Published 2026-04-08. Last modified 2026-09-14.