PT-2026-22532 · Npm · Openclaw

Publicado

2026-02-19

·

Atualizado

2026-02-19

CVSS v3.1

6.5

Média

VetorAV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Summary

The web fetch tool could be used to crash the OpenClaw Gateway process (OOM / resource exhaustion) by fetching and attempting to parse attacker-controlled web pages with oversized response bodies or pathological HTML nesting.

Affected Packages / Versions

  • Package: openclaw (npm)
  • Affected versions: <= 2026.2.14
  • Fixed versions: >= 2026.2.15

Impact

An attacker can social-engineer a user (or any automation that uses web fetch) into fetching a malicious URL that returns extremely large or deeply nested HTML. The Gateway may exhaust memory or become unresponsive, causing a denial of service.

Fix

The Gateway now caps the downloaded response body size before any HTML parsing and adds additional guards to avoid running Readability/DOM parsing on pathological HTML.

Fix Commit(s)

  • 166cf6a3e04c7df42bea70a7ad5ce2b9df46d147

Release Process Note

This advisory is prepared for the next npm release. Once openclaw@2026.2.15 is published, publish this advisory without further edits.
Thanks @xuemian168 for reporting.

Correção

Resource Exhaustion

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Enumeração de Fraquezas

CWE-400

Identificadores relacionados

GHSA-P536-VVPP-9MC8

Produtos afetados

Openclaw