Description
OpenClaw versions prior to 2026.2.2 fail to validate webhook secrets in Telegram webhook mode (must be enabled), allowing unauthenticated HTTP POST requests to the webhook endpoint that trust attacker-controlled JSON payloads. Remote attackers can forge Telegram updates by spoofing message.from.id and chat.id fields to bypass sender allowlists and execute privileged bot commands.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OpenClaw | OpenClaw | < 2026.2.2 | 2026.2.2 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| npm | openclaw | < 2026.2.1 | 2026.2.1 | GHSA-fhvm-j76f-qmjv |
Advisories 1
- WID-SEC-2026-0424 OpenClaw: Mehrere Schwachstellen BSI CERT-Bund (WID) · Mar 5, 2026
References
- GitHub Security Advisory (GHSA-fhvm-j76f-qmjv) vendor-advisory
- Patch Commit patch
- Hardening Commit #1 patch
- Hardening Commit #2 patch
- Hardening Commit #3 patch
- VulnCheck Advisory: OpenClaw < 2026.2.2 - Authorization Bypass via Unauthenticated Telegram Webhook third-party-advisory