jenkinsci/ec2-fleet-plugin · Security
Jenkins EC2 Fleet Plugin has a cross-site request forgery (CSRF) vulnerability
- GHSA ID
- GHSA-2x9c-vp3g-hvv2
- CVE ID
- CVE-2026-57295
- Severity
- medium
- Published
- Updated
- CVSS
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
- CVSS v3
- 5.4 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Description
Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a_81c3 and earlier does not perform permission checks in several HTTP endpoints used to validate cloud configurations.
This 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.
Additionally, these HTTP endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability.
EC2 Fleet Plugin 4.2.3.540.va_6eedb_7b_c112 requires Overall/Administer permission and POST requests to perform these form validation actions.
CWEs
- CWE-352 · Cross-Site Request Forgery (CSRF)
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-57295 ↗
- https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3774 ↗
- https://github.com/jenkinsci/ec2-fleet-plugin/pull/531 ↗
- https://github.com/jenkinsci/ec2-fleet-plugin/commit/a6eedb7bc112de92bbba179c03840d845b845c82 ↗
- https://github.com/jenkinsci/ec2-fleet-plugin/releases/tag/4.2.3.540.va_6eedb_7b_c112 ↗
- https://github.com/advisories/GHSA-2x9c-vp3g-hvv2 ↗