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.
References (1)
Core 1
Core References
Vendor Advisory vendor-advisory
Jenkins Security Advisory 2026-06-24
https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3774
Scores
CVSS v3
5.4
EPSS
0.0016
EPSS Percentile
5.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (2)
jenkins/ec2_fleet
< 4.2.3.539.v8fedff2a_81c3
Jenkins Project/Jenkins EC2 Fleet Plugin
< 4.2.3.539.v8fedff2a_81c3
Published
Jun 24, 2026
Tracked Since
Jun 24, 2026