How severe is CVE-2022-23740?

CVE-2022-23740 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-23740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23740?

CVE-2022-23740 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-23740?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-23740 published?

CVE-2022-23740 was published on 2022-11-23 and last updated on 2026-06-17.

CVE-2022-23740

CVE-2022-23740 is a high-severity vulnerability in Github Enterprise Server with a CVSS 3.x base score of 8.8. 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-88.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-88
Affected product: Github Enterprise Server
Published: 2022-11-23
Last modified: 2026-06-17

Description

CRITICAL: An improper neutralization of argument delimiters in a command vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. To exploit this vulnerability, an attacker would need permission to create and build GitHub Pages using GitHub Actions. This vulnerability affected only version 3.7.0 of GitHub Enterprise Server and was fixed in version 3.7.1. This vulnerability was reported via the GitHub Bug Bounty program.

Frequently asked questions

What is CVE-2022-23740?: CRITICAL: An improper neutralization of argument delimiters in a command vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. To exploit this vulnerability, an attacker would need permission to create and build GitHub Pages using GitHub Actions. This vulnerability affected only version 3.7.0 of GitHub Enterprise Server and was fixed in version 3.7.1. This vulnerability was reported via the GitHub Bug Bounty program.
How severe is CVE-2022-23740?: CVE-2022-23740 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-23740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23740?: CVE-2022-23740 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-23740?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-23740 published?: CVE-2022-23740 was published on 2022-11-23 and last updated on 2026-06-17.

References

https://docs.github.com/en/enterprise-server%403.7/admin/release-notes#3.7.1

Affected products (1)

cpe:2.3:a:github:enterprise_server:3.7.0:*:*:*:*:*:*:*

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