CVE-2026-28394

OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool

CVSS 6.9 MEDIUMEPSS 0.4%CWE-770

Vexday Risk Score

13Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 6.9EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

05 mar 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Productos afectados

OpenClaw · OpenClaw

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Referencias

https://github.com/openclaw/openclaw/commit/166cf6a3e04c7df42bea70a7ad5ce2b9df46d147 https://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8 https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool