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CVE-2023-23763 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A: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#3.6.18-security-fixes	CVE	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.7.16-security-fixes	CVE	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.8.9-security-fixes	CVE	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.9.4-security-fixes	CVE	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.6.18-security-fixes	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.7.16-security-fixes	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.8.9-security-fixes	[email protected]	Release Notes
https://docs.github.com/en/[email protected]/admin/release-notes#3.9.4-security-fixes	[email protected]	Release Notes

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-862	Missing Authorization	[email protected]
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
github enterprise server	>= 3.6.0, < 3.6.18 >= 3.7.0, < 3.7.16 >= 3.8.0, < 3.8.9 >= 3.9.0, < 3.9.4
CPE cpe:2.3:a:github:enterprise_server:::::::: Remediation No remediation found in references.

Change History

5 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Sep 7, 2023	Initial Analysis	[email protected]