High severity7.5NVD Advisory· Published Jun 30, 2021· Updated Jun 17, 2026
CVE-2021-21671
CVE-2021-21671
Description
Jenkins 2.299 and earlier, LTS 2.289.1 and earlier does not invalidate the previous session on login.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
org.jenkins-ci.main:jenkins-coreMaven | >= 2.292, < 2.300 | 2.300 |
org.jenkins-ci.main:jenkins-coreMaven | < 2.289.2 | 2.289.2 |
Affected products
5cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*+ 2 more
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*range: >=2.266,<2.300
- cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*range: >=2.277.1,<2.289.2
- (no CPE)range: 2.266
- osv-coords2 versions
>= 2.266.0, < 2.300.0+ 1 more
- (no CPE)range: >= 2.266.0, < 2.300.0
- (no CPE)range: >= 2.292, < 2.300
Patches
Vulnerability mechanics
References
5- www.openwall.com/lists/oss-security/2021/06/30/1nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-4wr9-2xc6-jmg5ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-21671ghsaADVISORY
- www.jenkins.io/security/advisory/2021-06-30/nvdVendor AdvisoryWEB
- github.com/jenkinsci/jenkins/commit/25a42f3942fd9f8bd768c887c679dbc796b4fcd5ghsaWEB
News mentions
1- Jenkins Security Advisory 2021-06-30Jenkins Security Advisories · Jun 30, 2021