An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff in a re-opened Pull Request. To exploit this vulnerability, an attacker would need write access to the repository. This vulnerability was reported via the GitHub Bug Bounty Program https://bounty.github.com/ .

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-23765
• https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.16
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.13
• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.9
• https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.1