Server-Side Request Forgery in OpenClaw Channel Extensions

Publication date: 2026-04-09

Last updated on: 2026-04-15

Assigner: VulnCheck

Description

OpenClaw before 2026.3.25 contains a server-side request forgery vulnerability in multiple channel extensions that fail to properly guard configured base URLs against SSRF attacks. Attackers can exploit unprotected fetch() calls against configured endpoints to rebind requests to blocked internal destinations and access restricted resources.

CVSS Scores

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Meta Information

Published

2026-04-09

Last Modified

2026-04-15

Generated

2026-07-06

AI Q&A

2026-04-10

EPSS Evaluated

2026-07-05

NVD

CVE-2026-35629

EUVD

EUVD-2026-21116

Affected Vendors & Products

Vendor	Product	Version / Range
openclaw	openclaw	to 2026.3.25 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-918	The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

Attack-Flow Graph

Executive Summary

This vulnerability is a server-side request forgery (SSRF) issue found in OpenClaw versions before 2026.3.25. It occurs in multiple channel extensions that do not properly protect configured base URLs from SSRF attacks. Attackers can exploit unprotected fetch() calls to redirect requests to internal or restricted endpoints that should normally be inaccessible.

Impact Analysis

The vulnerability allows attackers to bypass restrictions and access internal or restricted resources by rebinding requests to blocked internal destinations. This can lead to unauthorized access to sensitive information or internal systems, potentially compromising confidentiality, integrity, and availability of data or services.

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