CVE-2026-57303: Vulnerability in Jenkins Project Jenkins Assembla Plugin
Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.
AI Analysis
Technical Summary
The Jenkins Assembla Plugin up to version 1.4 does not properly configure its XML parser to prevent XXE attacks. This vulnerability enables attackers with control over the configured Assembla server's responses to exploit the plugin, potentially extracting sensitive information from the Jenkins controller or causing server-side request forgery. The vulnerability is publicly known but lacks a CVSS score and official remediation details.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of secrets stored on the Jenkins controller and enable server-side request forgery attacks. This compromises the confidentiality and potentially the integrity of the Jenkins environment where the vulnerable plugin is installed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the Jenkins controller and the configured Assembla server to trusted parties only to reduce the risk of exploitation.
CVE-2026-57303: Vulnerability in Jenkins Project Jenkins Assembla Plugin
Description
Jenkins Assembla Plugin 1.4 and earlier does not configure its XML parser to prevent XML external entity (XXE) attacks, allowing attackers able to control the responses of the configured Assembla server to extract secrets from the Jenkins controller or perform server-side request forgery.
CVSS v3.1
Score 7.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Jenkins Assembla Plugin up to version 1.4 does not properly configure its XML parser to prevent XXE attacks. This vulnerability enables attackers with control over the configured Assembla server's responses to exploit the plugin, potentially extracting sensitive information from the Jenkins controller or causing server-side request forgery. The vulnerability is publicly known but lacks a CVSS score and official remediation details.
Potential Impact
Exploitation of this vulnerability can lead to unauthorized disclosure of secrets stored on the Jenkins controller and enable server-side request forgery attacks. This compromises the confidentiality and potentially the integrity of the Jenkins environment where the vulnerable plugin is installed.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to the Jenkins controller and the configured Assembla server to trusted parties only to reduce the risk of exploitation.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- jenkins
- Date Reserved
- 2026-06-24T08:41:44.359Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a3be196eed863c81eeb9923
Added to database: 06/24/2026, 13:54:30 UTC
Last enriched: 06/24/2026, 14:10:25 UTC
Last updated: 06/24/2026, 19:05:15 UTC
Views: 6
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