Rewindex/CVEs/GitHub

CVE-2026-3306: Improper authorization in GitHub Projects allows modification of issue and pull request metadata without repository write access

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.

Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · CWE-639

Tracked companies

GitHub

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

GitHub: Enterprise Server

References

• CVE record on cve.org (opens in new tab)
• NVD entry (opens in new tab)
• docs.github.com/en/enterprise-server@3.14/admin/release-notes (opens in new tab)
• docs.github.com/en/enterprise-server@3.15/admin/release-notes (opens in new tab)
• docs.github.com/en/enterprise-server@3.16/admin/release-notes (opens in new tab)
• docs.github.com/en/enterprise-server@3.17/admin/release-notes (opens in new tab)
• docs.github.com/en/enterprise-server@3.18/admin/release-notes (opens in new tab)
• docs.github.com/en/enterprise-server@3.19/admin/release-notes (opens in new tab)

All CVEsMarkdownJSON

• CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
• This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
• Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
• EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)