CVE-2023-6746: GitHub Enterprise Server

Medium severity, CVSS 5.7. EPSS: 0.5% chance of exploitation in the next 30 days.

An insertion of sensitive information into log file vulnerability was identified in the log files for a GitHub Enterprise Server back-end service that could permit an `adversary in the middle attack` when combined with other phishing techniques. To exploit this, an attacker would need access to the log files for the GitHub Enterprise Server appliance, a backup archive created with GitHub Enterprise Server Backup Utilities, or a service which received streamed logs. This vulnerability affected all versions of GitHub Enterprise Server since 3.7 and was fixed in version 3.7.19, 3.8.12, 3.9.7, 3.10.4, and 3.11.1. 

Affected products

• GitHub Enterprise Server: from 3.7.0, before 3.7.19 (fixed in 3.7.19); from 3.8.0, before 3.8.12 (fixed in 3.8.12); from 3.9.0, before 3.9.7 (fixed in 3.9.7); from 3.10.0, before 3.10.4 (fixed in 3.10.4); version 3.11.0 only

Published 2023-12-21. Last modified 2026-06-17.