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Openclaw CVE-2026-28394

MEDIUM
Allocation of Resources Without Limits or Throttling (CWE-770)
2026-03-05 disclosure@vulncheck.com GHSA-p536-vvpp-9mc8
Denial Of Service Openclaw
6.5
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
Patch released
Mar 09, 2026 - 20:28 nvd
Patch available
CVE Published
Mar 05, 2026 - 22:16 nvd
MEDIUM 6.5

DescriptionNVD

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.

AnalysisAI

Openclaw versions up to 2026.2.15 is affected by allocation of resources without limits or throttling (CVSS 6.5).

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RemediationAI

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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CVE-2026-28394 vulnerability details – vuln.today
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