How severe is CVE-2022-46255?

CVE-2022-46255 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-46255 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-46255?

CVE-2022-46255 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-46255?

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

When was CVE-2022-46255 published?

CVE-2022-46255 was published on 2022-12-14 and last updated on 2026-06-17.

CVE-2022-46255

CVE-2022-46255 is a critical-severity vulnerability in Github Enterprise Server with a CVSS 3.x base score of 9.8. 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-22.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-22
Affected product: Github Enterprise Server
Published: 2022-12-14
Last modified: 2026-06-17

Description

An improper limitation of a pathname to a restricted directory vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. A check was added within Pages to ensure the working directory is clean before unpacking new content to prevent an arbitrary file overwrite bug. 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-2022-46255?: An improper limitation of a pathname to a restricted directory vulnerability was identified in GitHub Enterprise Server that enabled remote code execution. A check was added within Pages to ensure the working directory is clean before unpacking new content to prevent an arbitrary file overwrite bug. 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-2022-46255?: CVE-2022-46255 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-46255 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-46255?: CVE-2022-46255 affects Github Enterprise Server. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-46255?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2022-46255 published?: CVE-2022-46255 was published on 2022-12-14 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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