Vulnerability · Published Apr 28, 2026 · Assigned by VulDB

CVE-2026-7235ErlichLiu claude-agent-sdk-master route.ts path traversal

Medium 5.3

In plain English

A medium-severity path traversal in claude-agent-sdk-master from ErlichLiu. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.5%top 60.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected products (as reported)

Vendor	Product	Versions
ErlichLiu	claude-agent-sdk-master	b185aa7ff0d864581257008077b4010fca1747bf

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

References

VDB-359844 | ErlichLiu claude-agent-sdk-master route.ts path traversal vdb-entry, technical-description
VDB-359844 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
Submit #802828 | ErlichLiu claude-agent-sdk-master Commit b185aa7ff0d864581257008077b4010fca1747bf Path Traversal third-party-advisory
https://github.com/ErlichLiu/claude-agent-sdk-master/issues/5 exploit, issue-tracking
https://github.com/ErlichLiu/claude-agent-sdk-master/ product