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CVE-2026-118237

GitHub Enterprise Server

CVSS 4.0
5.3 medium
CISA KEV
Not listed
Technical details
Weakness
CWE-125
EPSS · 07 Nov 2026
0.27% · p19
Public resources
None found
Vector
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

No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.

Description

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.

Exploits & detection

No public PoC or detection template found yet.

Timeline

  • Published: 03 Nov 2026
  • Last modified upstream: 06 Nov 2026

Sources & licenses

CVE / CVSS / CWE
NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
Exploitation
CISA KEV (CC0) · EPSS by FIRST.org
References used for the analysis
Analysis, summary and remediation
© VulnCrest

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