CVE-2026-42522
MEDIUM4.3EPSS 0.02%Jenkins GitHub Branch Source Plugin: Missing permissions check allows attackers to perform a connection test
Published: 4/29/2026Modified: 5/6/2026
Description
Jenkins GitHub Branch Source Plugin versions 1967.vdea_d580c1a_b_a_ and earlier do not perform a permission check in a method implementing form validation. This allows attackers with Overall/Read permission to connect to an attacker-specified URL with attacker-specified GitHub App credentials. GitHub Branch Source Plugin 1967.1969.v205fd594c821 requires Overall/Manage permission to perform the connection test.
Affected packages (1)
- Maven/org.jenkins-ci.plugins:github-branch-sourcefrom 0, < 1967.1969.v205fd594c821
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |