Improper authorization vulnerability in GitHub Enterprise Server allowed disclosure of private repository names via mobile upload policy API
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 5.3epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated attacker to determine the names of private repositories by their numeric ID. The mobile upload policy API endpoint did not perform an early authorization check, and validation error messages included the full repository name for repositories the caller did not have access to. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:L/SA:N
Affected products
GitHub · Enterprise ServerReferences
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.26https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.21https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.17https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.14https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.8https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.5https://docs.github.com/en/enterprise-server@3.20/admin/release-notes#3.20.1