CVE-2026-57294: Medium severity Jenkins EC2 Fleet Plugin vulnerability
A missing permission check in Jenkins EC2 Fleet Plugin 4.2.3.539.v8fedff2a81c3 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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-57294?
CVE-2026-57294 has a risk score of 68, indicating a moderate level of severity.
How do I fix CVE-2026-57294?
To fix CVE-2026-57294, upgrade the Jenkins EC2 Fleet Plugin to version 4.2.3.540.v8fedff2a_81c3 or later.
What are the consequences of CVE-2026-57294?
CVE-2026-57294 could allow attackers with Overall/Read permission to capture AWS credentials stored in Jenkins.
Which versions of the Jenkins EC2 Fleet Plugin are affected by CVE-2026-57294?
The affected versions of the Jenkins EC2 Fleet Plugin are 4.2.3.539.v8fedff2a_81c3 and earlier.
Who is vulnerable to CVE-2026-57294?
Users of Jenkins EC2 Fleet Plugin with Overall/Read permissions are vulnerable to CVE-2026-57294.