CVE-2026-57294: Vulnerability in Jenkins Project Jenkins EC2 Fleet Plugin
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 Analysis
Technical Summary
CVE-2026-57294 is a security vulnerability in the Jenkins EC2 Fleet Plugin where a missing permission check permits users with Overall/Read permission to misuse credentials IDs obtained by other means to connect to attacker-specified URLs. This can lead to unauthorized disclosure of AWS credentials stored within Jenkins. The vulnerability affects versions 4.2.3.539.v8fedff2a_81c3 and earlier. The plugin is a cloud service, and the vendor manages remediation for this service.
Potential Impact
Attackers with limited Jenkins permissions (Overall/Read) can exploit this vulnerability to access AWS credentials stored in Jenkins by connecting to attacker-controlled URLs using stolen credentials IDs. This could lead to unauthorized access to AWS resources associated with the compromised credentials.
Mitigation Recommendations
The vendor manages remediation for this cloud-hosted service. A patch is available, and users should verify with the Jenkins Project advisory for the latest update and ensure their Jenkins EC2 Fleet Plugin is updated to a fixed version. Until then, restrict Overall/Read permissions to trusted users only.
CVE-2026-57294: Vulnerability in Jenkins Project Jenkins EC2 Fleet Plugin
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.
CVSS v3.1
Score 5.4medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-57294 is a security vulnerability in the Jenkins EC2 Fleet Plugin where a missing permission check permits users with Overall/Read permission to misuse credentials IDs obtained by other means to connect to attacker-specified URLs. This can lead to unauthorized disclosure of AWS credentials stored within Jenkins. The vulnerability affects versions 4.2.3.539.v8fedff2a_81c3 and earlier. The plugin is a cloud service, and the vendor manages remediation for this service.
Potential Impact
Attackers with limited Jenkins permissions (Overall/Read) can exploit this vulnerability to access AWS credentials stored in Jenkins by connecting to attacker-controlled URLs using stolen credentials IDs. This could lead to unauthorized access to AWS resources associated with the compromised credentials.
Mitigation Recommendations
The vendor manages remediation for this cloud-hosted service. A patch is available, and users should verify with the Jenkins Project advisory for the latest update and ensure their Jenkins EC2 Fleet Plugin is updated to a fixed version. Until then, restrict Overall/Read permissions to trusted users only.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-06-24T08:41:44.358Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Is Cloud Service
- true
Threat ID: 6a3be195eed863c81eeb98fe
Added to database: 06/24/2026, 13:54:29 UTC
Last enriched: 06/24/2026, 14:11:13 UTC
Last updated: 06/24/2026, 18:48:34 UTC
Views: 6
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