CVSS 4.0
7.7 highCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NCVE-2026-19118
High (7.7) in github enterprise server. EPSS 0.9% chance of exploitation in the next 30 days.
A time-of-check time-of-use race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution. Exploitation required an authenticated user with write access to a repository and precise timing of concurrent upload requests. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.20, 3.18.14, 3.19.11, 3.20.7, and 3.21.5. This vulnerability was reported via the GitHub Bug Bounty program.
Severity
CVSS 3.1
7.5 highCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 59% of CVEs (scores of 2026-10-31)
- CWE
- CWE-367
- Published
- Modified
- Record from
- the NVD, synced
Affected
- github:enterprise_server
References
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.20
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.14
- https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.11
- https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.7
- https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.5