{"id":"CVE-2024-9487","url":"https://www.cyber-defence.io/tools/cve/CVE-2024-9487","generatedAt":"2026-11-04T21:14:20.833Z","title":"An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance.","description":"An improper verification of cryptographic signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed resulting in unauthorized provisioning of users and access to the instance. Exploitation required the encrypted assertions feature to be enabled, and the attacker would require direct network access as well as a signed SAML response or metadata document. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.15 and was fixed in versions 3.11.16, 3.12.10, 3.13.5, and 3.14.2. This vulnerability was reported via the GitHub Bug Bounty program.","published":"2024-10-10T22:15:11.000Z","lastModified":"2026-06-17T08:24:40.000Z","status":"Analyzed","sourceIdentifier":"product-cna@github.com","cvss":{"version":"4.0","score":9.5,"severity":"CRITICAL","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-347"],"affected":["github/enterprise server"],"epss":{"score":0.25607,"percentile":0.97962,"date":"2026-11-03","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 25.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.16","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.12/admin/release-notes#3.12.10","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.13/admin/release-notes#3.13.5","tags":["Release Notes"],"source":"product-cna@github.com"},{"url":"https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.2","tags":["Release Notes"],"source":"product-cna@github.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-9487","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}