Description (CNA)
OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats Base64 and Base64URL encoded signatures as distinct requests. Attackers can re-encode Telnyx webhook signatures to bypass replay detection while maintaining valid signature verification.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| OpenClaw / OpenClaw | affected 0 before 2026.3.31; unaffected 2026.3.31 |
CWE
CWE-294
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmx
- https://github.com/openclaw/openclaw/commit/ad77666054651c1fd77b1dc60fd6a8db6600a29a
- https://www.vulncheck.com/advisories/openclaw-webhook-replay-detection-bypass-via-base64-signature-re-encoding
ADP enrichment
No English description supplied.
No references supplied.