CVE-2026-42522
Jenkins GitHub Branch Source Plugin Permission Bypass Vulnerability
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.
INFO
Published Date :
April 29, 2026, 2:16 p.m.
Last Modified :
May 6, 2026, 4:18 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update the Jenkins GitHub Branch Source Plugin.
- Verify plugin version is not vulnerable.
- Restrict Overall/Read permissions if needed.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-42522.
| URL | Resource |
|---|---|
| https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3702 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-42522 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-42522
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42522 vulnerability anywhere in the article.
-
CybersecurityNews
Jenkins Patches High-Severity Plugin Flaws Including Path Traversal and Stored XSS
Jenkins project published a security advisory detailing patches for seven plugin vulnerabilities, including high-severity path traversal and Stored Cross-Site Scripting (XSS) flaws. Administrators mus ... Read more
The following table lists the changes that have been made to the
CVE-2026-42522 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 06, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:jenkins:github_branch_source:*:*:*:*:*:jenkins:*:* versions up to (including) 1967.vdea_d580c1a_b_a Added Reference Type Jenkins Project: https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3702 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N Added CWE CWE-862 -
New CVE Received by [email protected]
Apr. 29, 2026
Action Type Old Value New Value 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. Added Reference https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3702