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.

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Fixes

Solution

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Workaround

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History

Wed, 11 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 11 Mar 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Github
Github enterprise Server
Vendors & Products Github
Github enterprise Server

Tue, 10 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
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.
Title Improper authorization in GitHub Projects allows modification of issue and pull request metadata without repository write access
Weaknesses CWE-639
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_P

Published:

Updated: 2026-03-11T14:17:24.504Z

Reserved: 2026-02-26T21:00:40.345Z

Link: CVE-2026-3306

cve-icon Vulnrichment

Updated: 2026-03-11T14:17:18.759Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-03-10T18:19:01.137

Modified: 2026-03-11T13:53:20.707

Link: CVE-2026-3306

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-03-11T11:44:39Z

Weaknesses