CVE-2023-23763

low-risk
Published 2023-09-01

An authorization/sensitive information disclosure vulnerability was identified in GitHub Enterprise Server that allowed a fork to retain read access to an upstream repository after its visibility was changed to private. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.10.0 and was fixed in versions 3.9.4, 3.8.9, 3.7.16 and 3.6.18. This vulnerability was reported via the GitHub Bug Bounty program.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.3/10 Medium
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Github

References (8)

Release Notes https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.18-secu...
Release Notes https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.16-secu...
Release Notes https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.9-secur...
Release Notes https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.4-secur...
Release Notes https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.18-secu...
Release Notes https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.16-secu...
Release Notes https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.9-secur...
Release Notes https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.4-secur...
26
/ 100
low-risk
Severity 21/34 · High
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal