CVE-2026-28394 (GCVE-0-2026-28394)
Vulnerability from cvelistv5 – Published: 2026-03-05 21:59 – Updated: 2026-03-11 13:35
VLAI
EPSS
VEX
Title
OpenClaw < 2026.2.15 - Denial of Service via Unbounded Response Parsing in web_fetch Tool
Summary
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.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 13:34 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/openclaw/openclaw/security/adv… | vendor-advisory |
| https://github.com/openclaw/openclaw/commit/166cf… | patch |
| https://www.vulncheck.com/advisories/openclaw-den… | third-party-advisory |
Impacted products
Date Public
2026-02-18 00:00
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