From https://www.openwall.com/lists/oss-security/2021/02/19/7 : Jenkins is an open source automation server which enables developers around the world to reliably build, test, and deploy their software. The following releases contain fixes for security vulnerabilities: * Jenkins 2.280 Summaries of the vulnerabilities are below. More details, severity, and attribution can be found here: https://www.jenkins.io/security/advisory/2021-02-19/ We provide advance notification for security updates on this mailing list: https://groups.google.com/d/forum/jenkinsci-advisories If you discover security vulnerabilities in Jenkins, please report them as described here: https://www.jenkins.io/security/#reporting-vulnerabilities --- SECURITY-2195 / CVE-2021-22112 Spring Security 5.4.3 and earlier has a vulnerability that unintentionally persisted temporarily elevated privileges in some circumstances in a user's session. This issue, CVE-2021-22112, is resolved in Spring Security 5.4.4. Jenkins 2.266 through 2.279 (inclusive) include releases of Spring Security with this vulnerability. We are aware of a sequence of operations in Jenkins 2.275 through 2.278 (inclusive) that allows attackers with Job/Workspace permission to exploit this to switch their identity to SYSTEM, an internal user with all permissions.
jenkins 2.280 added and vulnerable version removed. The "lts" slot is not affected.
(In reply to Hans de Graaff from comment #1) > jenkins 2.280 added and vulnerable version removed. The "lts" slot is not > affected. Thanks! All done.
