CVE-2026-103620: fallo de gravedad media en GitHub Enterprise Server
Missing authorization in GitHub Enterprise Server allowed repository writers to replace default branches via GraphQL
Publicada el · Actualizada el
13Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 6epss 0.4%
probabilidad de explotación
0.4%top 63% de las CVE
explotación observada
noninguna fuente lo reporta
A missing authorization vulnerability was identified in GitHub Enterprise Server that allowed a repository collaborator with write access to delete the current default branch through the GraphQL API and cause an attacker-controlled branch to become the new default. In repositories that required pull-request review but did not restrict branch deletion, this bypassed the review requirement and caused fresh clones and default-branch API requests to use attacker-controlled content. This vulnerability affected supported GitHub Enterprise Server releases in the 3.18, 3.19, 3.20, 3.21, and 3.22 series and was fixed in versions 3.18.16, 3.19.13, 3.20.9, 3.21.7, and 3.22.2. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
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-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-2024-1374CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.6%CVE-2024-4985CRITICALCVE-2024-4985EPSS 2.6%CVE-2024-1355CRITICALCommand injection vulnerability was identified in GitHub Enterprise Server that allowed privilege escalation in the Mangement ConsoleEPSS 2.4%
Referencias
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.16https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.13https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.9https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.7https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.2