GHSA-m958-864j-xq5w: Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding
(updated )
Duplicate Advisory
This advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx. This link is maintained to preserve external references.
Original Description
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.
References
- github.com/advisories/GHSA-m958-864j-xq5w
- github.com/openclaw/openclaw/commit/ad77666054651c1fd77b1dc60fd6a8db6600a29a
- github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmx
- nvd.nist.gov/vuln/detail/CVE-2026-41351
- www.vulncheck.com/advisories/openclaw-webhook-replay-detection-bypass-via-base64-signature-re-encoding
Code Behaviors & Features
Detect and mitigate GHSA-m958-864j-xq5w with GitLab Dependency Scanning
Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →