CVE-2026-29609: Openclaw

High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days.

OpenClaw versions prior to 2026.2.14 contain a denial of service vulnerability in the fetchWithGuard function that allocates entire response payloads in memory before enforcing maxBytes limits. Remote attackers can trigger memory exhaustion by serving oversized responses without content-length headers to cause availability loss.

Affected products

• Openclaw Openclaw: before 2026.2.14 (fixed in 2026.2.14)

Published 2026-03-05. Last modified 2026-06-17.