CVE-2026-28394
CVE-2026-28394 · OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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 6.9 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
Original sources
- https://github.com/openclaw/openclaw/security/advisories/GHSA-p536-vvpp-9mc8
- https://github.com/openclaw/openclaw/commit/166cf6a3e04c7df42bea70a7ad5ce2b9df46d147
- https://www.vulncheck.com/advisories/openclaw-denial-of-service-via-unbounded-response-parsing-in-web-fetch-tool
- https://nvd.nist.gov/vuln/detail/CVE-2026-28394