CVE-2026-15007: fallo de gravedad media en GitHub Enterprise Server
Denial of service vulnerability in GitHub Enterprise Server allowed service disruption via deeply nested YAML in release notes configuration
Publicada el
Aviso por correo cuando entre en el KEV, tenga PoC pública o suba de nota.
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 5.7epss 0.6%
A denial of service vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user to cause service disruption by supplying a repository release notes configuration file containing deeply nested YAML. When release notes were generated, the configuration file was parsed without a nesting depth limit, causing excessive resource consumption that could render the instance unresponsive. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.22 and was fixed in versions 3.17.18, 3.18.12, 3.19.9, 3.20.5, and 3.21.3. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U
Productos afectados
GitHub · Enterprise ServerCVEs relacionadas — GitHub Enterprise Server
En el mismo producto, de las más peligrosas a las menos.
CVE-2024-0200HIGHUnsafe Reflection in Github Enterprise Server leading to Command InjectionEPSS 71.7%CVE-2024-0507MEDIUMPrivilege Escalation by Code Injection in the Management Console in GitHub Enterprise ServerEPSS 65.8%CVE-2026-3854HIGHRemote code execution via git push option injection in GitHub Enterprise ServerEPSS 41.9%CVE-2024-9487CRITICALAn Improper Verification of Cryptographic Signature vulnerability was identified in GitHub Enterprise Server that allowed SAML SSO authentication to be bypassed when the encrypted assertions feature was enabledEPSS 25.6%CVE-2026-9312CRITICALServer-Side Request Forgery vulnerability in GitHub Enterprise Server allowed access to internal services via path traversal in upload endpointEPSS 9.2%CVE-2024-1374CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.6%
Referencias
https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.18https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.12https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.9https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.5https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.3