CVE-2026-28394
MEDIUMCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Lifecycle Timeline
3Description
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.
Analysis
Openclaw versions up to 2026.2.15 is affected by allocation of resources without limits or throttling (CVSS 6.5).
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Remediation
Within 30 days: Identify affected systems running a denial of service vulnerability in the web_fetch tool that and apply vendor patches as part of regular patch cycle. Vendor patch is available.
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External POC / Exploit Code
Leaving vuln.today
GHSA-p536-vvpp-9mc8