CVE-2026-3306 — Improper authorization in GitHub Projects allows modification of issue and pull request metadata without repository write access
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 i…
Published: 2026-03-10 · CVSS: 5.3 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7