5.3
Medium
CVE-2026-3306 An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read…
Description
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a project that already existed, column value updates were applied without verifying the actor's repository write permissions. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Enterprise Server 3.19 | 3.19.0 → 3.19.2 | No fix stated |
| Enterprise Server 3.18 | 3.18.0 → 3.18.5 | No fix stated |
| Enterprise Server 3.17 | 3.17.0 → 3.17.11 | No fix stated |
| Enterprise Server 3.16 | 3.16.0 → 3.16.14 | No fix stated |
| Enterprise Server 3.15 | 3.15.0 → 3.15.18 | No fix stated |
| Enterprise Server 3.14 | 3.14.0 → 3.14.23 | No fix stated |
Other CVEs of Enterprise Server
The 94 CVEs of Enterprise Server →
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Out-of-bounds read vulnerability in GitHub Enterprise Server allowed disclosure of process memory in the Git service
5.3
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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