CVE-2026-19118Race condition vulnerability was identified in GitHub Enterprise Server that allowed remote code execution
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-367
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_P
- NVD analysis
- Analyzed
- Record last updated
- Sep 2, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
GitHub Enterprise Server github:enterprise_server (from the name) | from 3.17.0 through 3.17.19; fixed at 3.17.20; from 3.18.0 through 3.18.13; fixed at 3.18.14; from 3.19.0 through 3.19.10; fixed at 3.19.11; from 3.20.0 through 3.20.6; fixed at 3.20.7; from 3.21.0 through 3.21.4; fixed at 3.21.5; 3.22.0 not affected | CNA record |
github enterprise_server github:enterprise_server | before 3.17.20; from 3.18.0 before 3.18.14; from 3.19.0 before 3.19.11; from 3.20.0 before 3.20.7; from 3.21.0 before 3.21.5 | NVD |
References
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.20release-notes, vendor-advisory
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.14release-notes, vendor-advisory
- https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.11release-notes, vendor-advisory
- https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.7release-notes, vendor-advisory
- https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.5release-notes, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.