CVE-2022-41722 Path traversal on Windows in path/filepath

What is CVE-2022-41722?

CVE-2022-41722 is a high-severity path traversal vulnerability in Golang Go, published on 28 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A path traversal vulnerability exists in filepath.Clean on Windows. On Windows, the filepath.Clean function could transform an invalid path such as "a/../c:/b" into the valid path "c:\b". This transformation of a relative (if invalid) path into an absolute path could enable a directory traversal attack. After fix, the filepath.Clean function transforms this path into the relative (but still invalid) path ".\c:\b".

Weakness: CWE-22

Which versions are affected by CVE-2022-41722?

2 open source packages ship an affected version, including golang and stdlib. It affects 1 product.

Products include Golang Go.

How do I fix CVE-2022-41722?

Upgrade golang to a fixed version for your release line: 1.19.6 or 1.20.1.

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

Is CVE-2022-41722 being exploited?

There is no known exploitation of CVE-2022-41722 in the wild and no public exploit code.

Other vulnerabilities in Golang Go

• CVE-2020-0601 Microsoft Windows CryptoAPI Spoofing Exploited High 8.1
• CVE-2026-27143 Missing bound checks can lead to memory corruption in safe Go in cmd/compile Critical 9.8
• CVE-2024-24790 Unexpected behavior from Is methods for IPv4-mapped IPv6 addresses in net/netip Critical 9.8
• CVE-2023-39320 Arbitrary code execution via go.mod toolchain directive in cmd/go Critical 9.8
• CVE-2023-24540 Improper handling of JavaScript whitespace in html/template Critical 9.8

All Golang Go vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as AZL-13738, AZL-37435, AZL-37449, AZL-47227, BIT-golang-2022-41722, DEBIAN-CVE-2022-41722 and 3 more.