CVE-2026-19118
Race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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, 3.21.5, and 3.22.0. This vulnerability was reported via the GitHub Bug Bounty program.
| CWE | CWE-367 |
| Vendor | github |
| Product | enterprise server |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 1, 2026 |
Stay Ahead of the Next One
Get instant alerts for github enterprise server
Be the first to know when new unknown vulnerabilities affecting github enterprise server are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
GitHub / Enterprise Server
3.17.0 ≤ 3.17.19 3.18.0 ≤ 3.18.13 3.19.0 ≤ 3.19.10 3.20.0 ≤ 3.20.6 3.21.0 ≤ 3.21.4
References
docs.github.com: https://docs.github.com/en/[email protected]/admin/release-notes#3.17.20 docs.github.com: https://docs.github.com/en/[email protected]/admin/release-notes#3.18.14 docs.github.com: https://docs.github.com/en/[email protected]/admin/release-notes#3.19.11 docs.github.com: https://docs.github.com/en/[email protected]/admin/release-notes#3.20.7 docs.github.com: https://docs.github.com/en/[email protected]/admin/release-notes#3.21.5
Credits
ahacker1 Harsh Jaiswal