CVE-2025-11578: high-severity vulnerability in GitHub Enterprise Server
Pre-Receive Hook Path Collision Vulnerability in GitHub Enterprise Server Allowing Privilege Escalation
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.7%
A privilege escalation vulnerability was identified in GitHub Enterprise Server that allowed an authenticated Enterprise admin to gain root SSH access to the appliance by exploiting a symlink escape in pre-receive hook environments. By crafting a malicious repository and environment, an attacker could replace system binaries during hook cleanup and execute a payload that adds their own SSH key to the root user’s authorized keys—thereby granting themselves root SSH access to the server. To exploit this vulnerability, the attacker needed to have enterprise admin privileges. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.19, and was fixed in versions 3.14.20, 3.15.15, 3.16.11, 3.17.8, 3.18.2. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
GitHub · Enterprise ServerRelated CVEs — GitHub Enterprise Server
In the same product, most dangerous first.
CVE-2024-0200HIGHUnsafe Reflection in Github Enterprise Server leading to Command InjectionEPSS 71.7%CVE-2024-0507MEDIUMPrivilege Escalation by Code Injection in the Management Console in GitHub Enterprise ServerEPSS 65.8%CVE-2026-3854HIGHRemote code execution via git push option injection in GitHub Enterprise ServerEPSS 41.9%CVE-2024-9487CRITICALAn Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed when the encrypted assertions feature was enabledEPSS 25.6%CVE-2026-9312CRITICALServer-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpointEPSS 9.2%CVE-2024-1374CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.6%
References
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.20https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.15https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.11https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.8https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.2