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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-3306 Detail

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

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc. (Products Only)
CVSS-B 5.3 MEDIUM
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

References to Advisories, Solutions, and Tools

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

Weakness Enumeration

CWE-ID CWE Name Source
CWE-639 Authorization Bypass Through User-Controlled Key GitHub, Inc. (Products Only)  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-3306
NVD Published Date:
03/10/2026
NVD Last Modified:
03/12/2026
Source:
GitHub, Inc. (Products Only)