CVE-2026-7235 ErlichLiu claude-agent-sdk-master route.ts path traversal
Remote attackers can exploit path traversal in the agent output route to read or modify arbitrary files on the server.
- 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-2026-7235?
CVE-2026-7235 is a medium-severity path traversal vulnerability in ErlichLiu claude-agent-sdk-master, published on 28 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A security vulnerability has been detected in ErlichLiu claude-agent-sdk-master up to b185aa7ff0d864581257008077b4010fca1747bf. Affected by this vulnerability is an unknown functionality of the file app/api/agent-output/route.ts. The manipulation of the argument outputFile leads to path traversal. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.
Weakness: CWE-22
Which versions are affected by CVE-2026-7235?
How do I fix CVE-2026-7235?
No fix has been published for CVE-2026-7235 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-2026-7235 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7235 exists.
Sources
Also known as GHSA-47r4-p7wr-42hw.