CVSS 4.0
5.3 mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NCVE-2026-3306
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.
Severity
CVSS 3.1
4.3 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
- CWE
- CWE-639
- Published
- Modified
- Record from
- the NVD, synced
Affected
- github:enterprise_server
References
- https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.24
- https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.19
- https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.15
- https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.12
- https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.6