CVE-2026-42522

Missing Permission Check Enables Remote URL Connections in Jenkins GitHub Branch Source Plugin

Published Apr 29, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
A missing permission check in Jenkins GitHub Branch Source Plugin 1967.vdea_d580c1a_b_a_ and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL with attacker-specified GitHub App credentials.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

Source ID Title
Github GHSA Github GHSA GHSA-wg26-8wmj-cf9p Jenkins GitHub Branch Source Plugin: Missing permissions check allows attackers to perform a connection test
History
Type Values Removed Values Added
First Time appeared Jenkins
Jenkins github Branch Source
CPEs cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:*
Vendors & Products Jenkins
Jenkins github Branch Source
Type Values Removed Values Added
First Time appeared Jenkins Project
Jenkins Project jenkins Github Branch Source Plugin
Vendors & Products Jenkins Project
Jenkins Project jenkins Github Branch Source Plugin
Type Values Removed Values Added
Title Missing Permission Check Enables Remote URL Connections in Jenkins GitHub Branch Source Plugin
Type Values Removed Values Added
Weaknesses CWE-862
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description A missing permission check in Jenkins GitHub Branch Source Plugin 1967.vdea_d580c1a_b_a_ and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL with attacker-specified GitHub App credentials.
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
jenkins
Published
Updated
Apr 29, 2026, 2:28 PM
Reserved
Apr 28, 2026, 9:24 AM
Status
Analyzed
Published
Apr 29, 2026, 2:16 PM
Modified
Oct 26, 2026, 8:10 PM