Jenkins GitHub Branch Source Plugin: Missing permissions check allows attackers to perform a connection test
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 software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | org.jenkins-ci.plugins:github-branch-source | < 1967.1969.v205fd594c821 | 1967.1969.v205fd594c821 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Weakness (CWE)
CWE-862- Platform
- Java / Kotlin (Maven)
- Package
org.jenkins-ci.plugins:github-branch-source- Disclosed
- 29.04.2026
- Updated
- 11.10.2026 12:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wg26-8wmj-cf9p - CC BY 4.0
Vulnerability history: org.jenkins-ci.plugins:github-branch-source
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 05.2022 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Medium 5
Disclosures per year
- 2022: 3
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 2
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Jenkins GitHub Branch Source Plugin: Missing permissions check allows attackers to perform a connection test this entry
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