How severe is CVE-2023-51379?

CVE-2023-51379 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.

Is CVE-2023-51379 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51379?

CVE-2023-51379 primarily affects Github Enterprise Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-51379?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-51379 published?

CVE-2023-51379 was published on 2023-12-21 and last updated on 2026-06-17.

CVE-2023-51379

CVE-2023-51379 is a medium-severity vulnerability in Github Enterprise Server with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-863.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-863
Affected product: Github Enterprise Server
Published: 2023-12-21
Last modified: 2026-06-17

Description

An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed issue comments to be updated with an improperly scoped token. This vulnerability did not allow unauthorized access to any repository content as it also required contents:write and issues:read permissions. This vulnerability affected all versions of GitHub Enterprise Server since 3.7 and was fixed in version 3.17.19, 3.8.12, 3.9.7, 3.10.4, and 3.11.1.

Frequently asked questions

What is CVE-2023-51379?: An incorrect authorization vulnerability was identified in GitHub Enterprise Server that allowed issue comments to be updated with an improperly scoped token. This vulnerability did not allow unauthorized access to any repository content as it also required contents:write and issues:read permissions. This vulnerability affected all versions of GitHub Enterprise Server since 3.7 and was fixed in version 3.17.19, 3.8.12, 3.9.7, 3.10.4, and 3.11.1.
How severe is CVE-2023-51379?: CVE-2023-51379 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
Is CVE-2023-51379 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51379?: CVE-2023-51379 primarily affects Github Enterprise Server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-51379?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-51379 published?: CVE-2023-51379 was published on 2023-12-21 and last updated on 2026-06-17.

References

Affected products (2)

cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
cpe:2.3:a:github:enterprise_server:3.11.0:*:*:*:*:*:*:*

More vulnerabilities in Github Enterprise Server

CVE-2026-8034 — Critical (CVSS 9.8): A server-side request forgery (SSRF) vulnerability was identified in the GitHub Enterprise Server notebook viewer that…
CVE-2024-6800 — Critical (CVSS 9.8): An XML signature wrapping vulnerability was present in GitHub Enterprise Server (GHES) when using SAML authentication…
CVE-2024-4985 — Critical (CVSS 9.8): An authentication bypass vulnerability was present in the GitHub Enterprise Server (GHES) when utilizing SAML single…
CVE-2022-23739 — Critical (CVSS 9.8): An incorrect authorization vulnerability was identified in GitHub Enterprise Server, allowing for escalation of…
CVE-2022-46255 — Critical (CVSS 9.8): An improper limitation of a pathname to a restricted directory vulnerability was identified in GitHub Enterprise Server…
CVE-2021-22869 — Critical (CVSS 9.8): An improper access control vulnerability in GitHub Enterprise Server allowed a workflow job to execute in a self-hosted…

All CVEs affecting Github Enterprise Server →

Other CWE-863 (Incorrect Authorization) vulnerabilities

CVE-2026-69555 — Critical (CVSS 10.0): Incorrect authorization in Azure Arc allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-71398 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-27302 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-48449 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary…
CVE-2026-48286 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9396 and earlier are affected by an Incorrect Authorization…
CVE-2026-48303 — Critical (CVSS 10.0): Adobe Campaign Classic (ACC) versions 7.4.3 build 9394 and earlier are affected by an Incorrect Authorization…

Browse all CWE-863 (Incorrect Authorization) vulnerabilities →