CVE-2023-23761: GitHub Enterprise Server

Medium severity, CVSS 5.3. EPSS: 0.5% chance of exploitation in the next 30 days.

An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed an unauthorized actor to modify other users' secret gists by authenticating through an SSH certificate authority. To do so, a user had to know the secret gist's URL. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.9 and was fixed in versions 3.4.18, 3.5.15, 3.6.11, 3.7.8, and 3.8.1. This vulnerability was reported via the GitHub Bug Bounty program.

Affected products

• GitHub Enterprise Server: before 3.4.18 (fixed in 3.4.18); from 3.5.0, before 3.5.15 (fixed in 3.5.15); from 3.6.0, before 3.6.11 (fixed in 3.6.11); from 3.7.0, before 3.7.8 (fixed in 3.7.8); version 3.8.0 only

Published 2023-04-07. Last modified 2026-06-17.