High severity8.6NVD Advisory· Published Jan 29, 2020· Updated Jun 17, 2026
CVE-2020-2099
CVE-2020-2099
Description
Jenkins 2.213 and earlier, LTS 2.204.1 and earlier improperly reuses encryption key parameters in the Inbound TCP Agent Protocol/3, allowing unauthorized attackers with knowledge of agent names to obtain the connection secrets for those agents, which can be used to connect to Jenkins, impersonating those agents.
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 | < 2.204.2 | 2.204.2 |
org.jenkins-ci.main:jenkins-coreMaven | >= 2.205, < 2.214 | 2.214 |
Affected products
3- osv-coords2 versions
< 2.218.1+ 1 more
- (no CPE)range: < 2.218.1
- (no CPE)range: < 2.204.2
- Range: unspecified
Patches
Vulnerability mechanics
References
9- www.openwall.com/lists/oss-security/2020/01/29/1nvdMailing ListThird Party AdvisoryWEB
- github.com/advisories/GHSA-qp4f-2w67-c8hwghsaADVISORY
- jenkins.io/security/advisory/2020-01-29/nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-2099ghsaADVISORY
- access.redhat.com/errata/RHBA-2020:0402nvdWEB
- access.redhat.com/errata/RHBA-2020:0675nvdWEB
- access.redhat.com/errata/RHSA-2020:0681nvdWEB
- access.redhat.com/errata/RHSA-2020:0683nvdWEB
- github.com/jenkinsci/jenkins/commit/5054bc6e12e1022993d719f66e289ab1d22ae854ghsaWEB
News mentions
1- Jenkins Security Advisory 2020-01-29Jenkins Security Advisories · Jan 29, 2020