7.0
High
CVE-2025-8447 An improper access control vulnerability was identified in GitHub Enterprise Server that allowed users with access to…
Description
An improper access control vulnerability was identified in GitHub Enterprise Server that allowed users with access to any repository to retrieve limited code content from another repository by creating a diff between the repositories. To exploit this vulnerability, an attacker needed to know the name of a private repository along with its branches, tags, or commit SHAs that they could use to trigger compare/diff functionality and retrieve limited code without proper authorization. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.18, and was fixed in versions 3.14.17, 3.15.12, 3.16.8 and 3.17.5. This vulnerability was reported via the GitHub Bug Bounty program.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Enterprise Server 3.17 | 3.17 → 3.17.4 | No fix stated |
| Enterprise Server 3.16 | 3.16 → 3.16.7 | No fix stated |
| Enterprise Server 3.15 | 3.15 → 3.15.11 | No fix stated |
| Enterprise Server 3.14 | 3.14 → 3.14.16 | No fix stated |
Other CVEs of Enterprise Server
The 94 CVEs of Enterprise Server →
CVE-2026-118237
Out-of-bounds read vulnerability in GitHub Enterprise Server allowed disclosure of process memory in the Git service
5.3
Medium
CVE-2026-110288
Cross-site request forgery vulnerability in GitHub Enterprise Server allowed deletion of stored ChatOps configuration through the Management Console
5.3
Medium
CVE-2026-104608
Use-after-free vulnerability in GitHub Enterprise Server allowed remote code execution in the Git service
7.7
High
CVE-2026-96890
A Server-Side Request Forgery (SSRF) vulnerability was identified in GitHub Enterprise Server that allowed a…
8.7
High