CVE-2026-118237: fallo de gravedad media en GitHub Enterprise Server
Out-of-bounds read vulnerability in GitHub Enterprise Server allowed disclosure of process memory in the Git service
Publicada el · Actualizada 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 5.3epss 0.3%
An out-of-bounds read vulnerability was identified in GitHub Enterprise Server in the Git service (babeld). When proving possession of a host key, babeld's SSH implementation sized the session identifier by the current digest length rather than its own. An attacker with an account and SSH access could re-key to an algorithm with a longer hash, causing adjacent process memory to be signed and returned to the client, where a limited amount of it may be recoverable. This vulnerability affected all releases prior to 3.23 and was fixed in versions 3.22.3, 3.21.8, 3.20.10, and 3.19.14. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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.
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Referencias
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.14https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.10https://docs.github.com/en/enterprise-server@3.21/admin/release-notes#3.21.8https://docs.github.com/en/enterprise-server@3.22/admin/release-notes#3.22.3