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 ...
Date: 2026-03
Affected: openclaw/openclaw
Attack vector: dos
Category: vulnerability-disclosure
Severity: High
CVE: CVE-2026-29609
CWE: CWE-770
CVSS: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

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.


Mitigations:

Architectural layers (MAESTRO):