CVE-2021-22869
highpriority · track · 39EPSS 0.012 · 68 %ileEUUSEPSS · scored 2026-10-27
An improper access control vulnerability in GitHub Enterprise Server allowed a workflow job to execute in a self-hosted runner group it should not have had access to. This affects customers using self-hosted runner groups for access control. A repository with access to one enterprise runner group could access all of the enterprise runner groups within the organization because of improper authentication checks during the request. This could cause code to be run unintentionally by the incorrect runner group. This vulnerability affected GitHub Enterprise Server versions from 3.0.0 to 3.0.15 and 3.1.0 to 3.1.7 and was fixed in 3.0.16 and 3.1.8 releases.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.5–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (4)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.16cnnvd
- https://docs.github.com/en/enterprise-server@3.1/admin/release-notes#3.1.8cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-22869cnnvd
- https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.16enisa_euvd
- https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.8enisa_euvd
- https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.16nvd
- https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.8nvd
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