CVE-2026-3306
MEDIUM EPSS 23.9%
Published Mar 10, 20263mo ago · Modified Jun 17, 20261w ago
5.3 CVSS 4.0
Published Mar 10, 2026 3mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
23.9% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-639
Affected Products 6
References 6
- docs.github.com https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.24
- docs.github.com https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.19
- docs.github.com https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.15
- docs.github.com https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.12
- docs.github.com https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.6
- docs.github.com https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.3
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.