OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool
Summary
OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- advisory vulncheck.com
- patch github.com