CVE-2022-46255 Improper Limitation of a Pathname to a Restricted Directory in GitHub Enterprise Server leading to RCE

Critical 9.8 Published 14 Dec 2022 Updated 22 Apr 2025

An attacker can exploit a path traversal flaw in GitHub Enterprise Server Pages to overwrite files and achieve remote code execution.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2022-46255?

CVE-2022-46255 is a critical path traversal vulnerability in Github Enterprise Server, published on 14 Dec 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-22

Which versions are affected by CVE-2022-46255?

It affects 1 product.

Products include Github Enterprise Server.

How do I fix CVE-2022-46255?

No fix has been published for CVE-2022-46255 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-46255 being exploited?

There is no known exploitation of CVE-2022-46255 in the wild and no public exploit code.

All Github Enterprise Server vulnerabilities

Sources

Also known as GHSA-7g4x-mgr6-m9g9.