CVE-2025-54794 Claude Code Research Preview has a Path Restriction Bypass which could allow unauthorized file access

High 7.7 Published Updated

Attackers can bypass directory restrictions to read files outside the current working directory by exploiting prefix matching flaws in path validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2025-54794?

CVE-2025-54794 is a high-severity path traversal vulnerability in anthropics claude-code, published on 5 Aug 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Claude Code is an agentic coding tool. In versions below 0.2.111, a path validation flaw using prefix matching instead of canonical path comparison, makes it possible to bypass directory restrictions and access files outside the CWD. Successful exploitation depends on the presence of (or ability to create) a directory with the same prefix as the CWD and the ability to add untrusted content into a Claude Code context window. This is fixed in version 0.2.111.

Weakness: CWE-22

Which versions are affected by CVE-2025-54794?

2 open source packages ship an affected version, including @anthropic-ai/claude-code. It affects 1 product.

PackageAffectedFixed in
@anthropic-ai/claude-code npmAll versions0.2.111
@anthropic-ai/claude-code npmAll versions0.2.111

Products include Anthropic Claude Code.

How do I fix CVE-2025-54794?

Upgrade @anthropic-ai/claude-code to 0.2.111 or later.

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

Is CVE-2025-54794 being exploited?

There is no known exploitation of CVE-2025-54794 in the wild and no public exploit code.

Public exploit code: 1 proofs of concept on GitHub.

Sources

Also known as GHSA-pmw4-pwvc-3hx2.

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