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Advisories

OpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing

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severity
medium
date
Affecting

  • OpenClaw < 2026.3.25

CWE
  • CWE-696: Incorrect Behavior Order
CVSS
6.9
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Credit
tdjackey
Description
OpenClaw before 2026.3.25 parses JSON request bodies before validating webhook signatures, allowing unauthenticated attackers to force resource-intensive parsing operations. Remote attackers can send malicious webhook requests to trigger denial of service by exhausting server resources through forced JSON parsing before signature rejection.

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