Description
OpenClaw versions 2026.2.19 before 2026.3.31 contain an improper cache isolation vulnerability in the Zalo webhook replay-dedupe mechanism that is shared across authenticated webhook targets. Attackers controlling one authenticated Zalo webhook path in multi-account deployments can suppress legitimate events on different accounts by matching event_name and message_id parameters.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | 2026.2.19 – < 2026.3.31 | 2026.3.31 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | >= 2026.2.19, < 2026.3.31 | 2026.3.31 | GHSA-fqrj-m88p-qf3v |
Advisories 1
- WID-SEC-2026-0980 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 28, 2026
References
- GitHub Security Advisory (GHSA-fqrj-m88p-qf3v) vendor-advisory
- Patch Commit patch
- Patch Commit patch
- VulnCheck Advisory: OpenClaw 2026.2.19 < 2026.3.31 - Webhook Replay Dedupe Cache Event Suppression via Shared Authentication third-party-advisory