Medium severity5.4NVD Advisory· Published Jun 24, 2026· Updated Jun 26, 2026
CVE-2026-57294
CVE-2026-57294
Description
A missing permission check in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing AWS credentials stored in Jenkins.
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 |
|---|---|---|
com.amazon.jenkins.fleet:ec2-fleetMaven | < 4.2.3.540.va | 4.2.3.540.va |
Affected products
3- Range: <=4.2.3.539.v8fedff2a_81c3
- cpe:2.3:a:jenkins:ec2_fleet:*:*:*:*:*:jenkins:*:*Range: <=4.2.3.539.v8fedff2a_81c3
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-9v77-j4xv-34gqghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-57294ghsaADVISORY
- www.jenkins.io/security/advisory/2026-06-24/nvdVendor AdvisoryWEB
- github.com/jenkinsci/ec2-fleet-plugin/commit/a6eedb7bc112de92bbba179c03840d845b845c82ghsaWEB
- github.com/jenkinsci/ec2-fleet-plugin/pull/531ghsaWEB
- github.com/jenkinsci/ec2-fleet-plugin/releases/tag/4.2.3.540.va_6eedb_7b_c112ghsaWEB
News mentions
2- Jenkins Project: 25 Plugin Vulnerabilities Disclosed Together on June 24, 2026Vypr Intelligence · Jun 24, 2026
- Jenkins Security Advisory 2026-06-24Jenkins Security Advisories · Jun 24, 2026