Description
OpenClaw versions prior to 2026.2.23 contain a vulnerability in Twilio webhook event deduplication where normalized event IDs are randomized per parse, allowing replay events to bypass manager dedupe checks. Attackers can replay Twilio webhook events to trigger duplicate or stale call-state transitions, potentially causing incorrect call handling and state corruption.
Problem types
CWE-294 Authentication Bypass by Capture-replay
Product status
Any version before 2026.2.23
2026.2.23 (semver)
Credits
Jisung (@jiseoung)
References
github.com/...enclaw/security/advisories/GHSA-vqx8-9xxw-f2m7 (GitHub Security Advisory (GHSA-vqx8-9xxw-f2m7))
github.com/...ommit/1d28da55a5d0ff409e34999e0961157e9db0a2ab (Patch Commit)
www.vulncheck.com/...s-via-randomized-event-id-normalization (VulnCheck Advisory: OpenClaw < 2026.2.23 - Twilio Webhook Replay Bypass via Randomized Event ID Normalization)