GHSA-9528-x887-j2fpMedium

OpenClaw's Nextcloud Talk webhook missing rate limiting on shared secret authentication

Published
March 31, 2026
Last Modified
April 6, 2026

🔗 CVE IDs covered (1)

CVE-2026-33580 →

📋 Description

Summary

Nextcloud Talk webhook signature failures were not throttled even though the integration relies on an operator-configured shared secret that may be weak.

Impact

An attacker who could reach the webhook endpoint could brute-force weak secrets online and then forge inbound webhook events.

Affected Component

extensions/nextcloud-talk/src/monitor.ts

Fixed Versions

  • Affected: <= 2026.3.24
  • Patched: >= 2026.3.28
  • Latest stable 2026.3.28 contains the fix.

Fix

Fixed by commit e403decb6e (nextcloud-talk: throttle repeated webhook auth failures).

OpenClaw thanks @AntAISecurityLab for reporting.

🎯 Affected products1

  • npm/openclaw:<= 2026.3.24

🔗 References (6)