What’s Vulnerable › Vulnerabilities

CVE-2023-51380: Incorrect Authorization allows Read Access to Issue Comments in GitHub Enterprise Server

• Severity: medium (CVSS 4.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-21 · updated 2026-06-17
• Weakness: CWE-863

Description

An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed issue comments to be read with an improperly scoped token. This vulnerability affected all versions of GitHub Enterprise Server since 3.7 and was fixed in version 3.7.19, 3.8.12, 3.9.7, 3.10.4, and 3.11.1.

Affected products

• GitHub Enterprise Server: from 3.7.0 before 3.7.19; from 3.8.0 before 3.8.12; from 3.9.0 before 3.9.7; from 3.10.0 before 3.10.4; 3.11.0 — fixed in 3.10.4, 3.7.19, 3.8.12, 3.9.7

How to fix

Upgrade to a fixed version: GitHub Enterprise Server 3.10.4, 3.7.19, 3.8.12, 3.9.7. Check the vendor advisory for mitigations.

References

• https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.4
• https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.1
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.19
• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.12
• https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.7
• https://docs.github.com/en/enterprise-server@3.10/admin/release-notes#3.10.4
• https://docs.github.com/en/enterprise-server@3.11/admin/release-notes#3.11.1
• https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.19
• https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.12
• https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.7

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