Missing Permission Check in Jenkins GitHub Branch Source Plugin
CVE-2026-42522

4.3MEDIUM

Key Information:

Vendor

Jenkins
Status
Jenkins Github Branch Source Plugin
Vendor
CVE Published:
29 April 2026

What is CVE-2026-42522?

A vulnerability exists in the Jenkins GitHub Branch Source Plugin, where a missing permission check allows users with Overall/Read access to connect to any URL specified by the attacker utilizing GitHub App credentials. This can lead to unauthorized access and potential manipulation of repositories, emphasizing the need for secure permission management and the prompt application of security updates.

Affected Version(s)

Jenkins GitHub Branch Source Plugin 0 <= 1967.vdea_d580c1a_b_a_

References

https://www.jenkins.io/security/advisory/2026-04-29/#SECU...
vendor-advisory

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.