Description

OpenClaw versions prior to 2026.2.15 contain a denial of service vulnerability in the web_fetch tool that allows attackers to crash the Gateway process through memory exhaustion by parsing oversized or deeply nested HTML responses. Remote attackers can social-engineer users into fetching malicious URLs with pathological HTML structures to exhaust server memory and cause service unavailability.

INFO

Published Date :

2026-03-05T21:59:22.734Z

Last Modified :

2026-03-11T13:35:37.639Z

Source :

VulnCheck
AFFECTED PRODUCTS

The following products are affected by CVE-2026-28394 vulnerability.

Vendors Products
Openclaw
  • Openclaw
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-28394.

URL Resource
https://github.com/openclaw/openclaw/commit/166cf6a3e04c7df42bea70a7ad5ce2b9df46d147 cve-icon cve-icon
https://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8 cve-icon cve-icon
https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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SS Confidentiality
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Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact