{"id":"CVE-2021-22862","state":"PUBLISHED","title":"Improper access control in GitHub Enterprise Server leading to the disclosure of Actions secrets to forks","description":"An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. This vulnerability existed due to a flaw that allowed the base reference of a pull request to be updated to point to an arbitrary SHA or another pull request outside of the fork repository. By establishing this incorrect reference in a PR, the restrictions that limit the Actions secrets sent a workflow from forks could be bypassed. This vulnerability affected GitHub Enterprise Server version 3.0.0, 3.0.0.rc2, and 3.0.0.rc1. This vulnerability was reported via the GitHub Bug Bounty program.","publishedAt":"2021-03-03T03:25:22.000Z","updatedAt":"2024-08-03T18:51:07.479Z","severity":null,"assigner":"GitHub_P","products":["GitHub GitHub Enterprise Server"],"affected":[{"vendor":"GitHub","product":"GitHub Enterprise Server","versions":[{"version":"3.0","status":"affected","lessThan":"3.0.1","versionType":"custom"}]}],"references":["https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.1"],"weaknesses":["CWE-285"],"ingestedAt":"2026-10-29T19:48:02.192Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/22xxx/CVE-2021-22862.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-22862","state":"PUBLISHED","datePublished":"2021-03-03T03:25:22.000Z","dateUpdated":"2024-08-03T18:51:07.479Z","assignerShortName":"GitHub_P","assignerOrgId":"82327ea3-741d-41e4-88f8-2cf9e791e760","dateReserved":"2021-01-06T00:00:00.000Z"},"containers":{"cna":{"title":"Improper access control in GitHub Enterprise Server leading to the disclosure of Actions secrets to forks","descriptions":[{"lang":"en","value":"An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. 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This vulnerability was reported via the GitHub Bug Bounty program."}],"affected":[{"vendor":"GitHub","product":"GitHub Enterprise Server","versions":[{"version":"3.0","status":"affected","lessThan":"3.0.1","versionType":"custom"}]}],"references":[{"url":"https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.1","tags":["x_refsource_MISC"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_P","dateUpdated":"2021-03-03T03:25:22.000Z","orgId":"82327ea3-741d-41e4-88f8-2cf9e791e760"},"credits":[{"lang":"en","value":"Teddy Katz"}],"source":{"discovery":"EXTERNAL"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"product-cna@github.com","ID":"CVE-2021-22862","STATE":"PUBLIC","TITLE":"Improper access control in GitHub Enterprise Server leading to the disclosure of Actions secrets to forks"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"GitHub Enterprise Server","version":{"version_data":[{"version_affected":"<","version_name":"3.0","version_value":"3.0.1"}]}}]},"vendor_name":"GitHub"}]}},"credit":[{"lang":"eng","value":"Teddy Katz"}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"An improper access control vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with the ability to fork a repository to disclose Actions secrets for the parent repository of the fork. 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