CVE-2026-42522

Medium

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.

SeverityMedium

CVSS4.3

Exploit probability—

Product

Jenkins Github Branch Source

PublishedApr 29, 2026

First seenApr 29, 2026

Weakness typeCWE-862Missing authorization

How to fix

Update

org.jenkins-ci.plugins:github-branch-source1967.1969.v205fd594c821 or later

Vendor advisories

jenkins.io/security/advisory/2026-04-29/#SECURITY-3702

Affected products

Product	Affected versions	Fixed in
jenkins github_branch_source	v ≤ 1967.vdea_d580c1a_b_a	—
org.jenkins-ci.plugins:github-branch-sourceMaven	v < 1967.1969.v205fd594c821	1967.1969.v205fd594c821

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