CVE-2026-118237: Out-of-bounds read vulnerability in GitHub Enterprise Server allowed disclosure of process memory in the Git service
GitHub · Enterprise Server
Vendor fix available · Affected: GitHub Enterprise Server · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 19% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- GitHub · Enterprise Serverfrom 3.19.0 before 3.19.*; from 3.20.0 before 3.20.*; from 3.21.0 before 3.21.*; from 3.22.0 before 3.22.*
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- GitHub
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-118237 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.