Replay Attack Affecting openclaw package, versions <2026.3.31-beta.1


Severity

Recommended
0.0
medium
0
10

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  • Snyk IDSNYK-JS-OPENCLAW-15894785
  • published5 Apr 2026
  • disclosed3 Apr 2026
  • creditAntAISecurityLab

Introduced: 3 Apr 2026

New CVE NOT AVAILABLE CWE-294  (opens in a new tab)

How to fix?

Upgrade openclaw to version 2026.3.31-beta.1 or higher.

Overview

openclaw is a 🦞 OpenClaw — Personal AI Assistant

Affected versions of this package are vulnerable to Replay Attack via the webhook signature verification process. An attacker can bypass replay detection by submitting requests with equivalent Base64 and Base64URL-encoded signatures, causing the system to treat them as distinct and allowing replayed requests to be accepted.

CVSS Base Scores

version 4.0
version 3.1