Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2026-3306 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://docs.github.com/en/[email protected]/admin/release-notes#3.14.24	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.15.19	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.16.15	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.17.12	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.18.6	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.19.3	[email protected]	Release Notes

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-639	Authorization Bypass Through User-Controlled Key	[email protected]

Affected Products

Product	Versions
github enterprise server	< 3.14.24 >= 3.15.0, < 3.15.19 >= 3.16.0, < 3.16.15 >= 3.17.0, < 3.17.12 >= 3.18.0, < 3.18.6
CPE cpe:2.3:a:github:enterprise_server:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Mar 12, 2026	Initial Analysis	[email protected]
Mar 10, 2026	New CVE Received	[email protected]