CVE-2023-23764

Name: CVE-2023-23764
Creator: NVD / NIST
Published: 2023-07-27T21:15:10.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2023-23764 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff within the GitHub pull request UI. To do so, an attacker would need write access to the repository. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

Description

An incorrect comparison vulnerability was identified in GitHub Enterprise Server that allowed commit smuggling by displaying an incorrect diff within the GitHub pull request UI. To do so, an attacker would need write access to the repository. This vulnerability affected GitHub Enterprise Server versions 3.7.0 and above and was fixed in versions 3.7.9, 3.8.2, and 3.9.1. This vulnerability was reported via the GitHub Bug Bounty program.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

EPSS Probability

0.47%

37.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Github	Enterprise Server	>= 3.7.0, < 3.7.9
Github	Enterprise Server	>= 3.8.0, < 3.8.2
Github	Enterprise Server	3.9.0

References

https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.9Release Notes
https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.2Release Notes
https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.1Release Notes
https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.9Release Notes
https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.2Release Notes
https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.1Release Notes

Timeline

Published: Jul 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-23764?

How severe is CVE-2023-23764?

CVE-2023-23764 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2023-23764?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-23764?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST