Missing Authorization in GitHub Branch Source - CVE-2026-57285
Published: June 29, 2026
Vulnerability identifier: #VU135707
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-57285
CWE-ID: CWE-862
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
GitHub Branch Source
GitHub Branch Source
Detailed vulnerability description
The vulnerability allows a remote attacker to bypass authorization checks.
The vulnerability exists due to improper authorization checks. A remote user can obtain the URLs of GitHub Enterprise servers configured by administrators.
How to mitigate CVE-2026-57285
Install updates from vendor's website.