GitHub Advisoryadvisory · npm

GHSA-37v6-fxx8-xjmx OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding

MEDIUM Published 2026-04-03 Modified 2026-05-06 Official page ↗
Aliases
CVE-2026-41351
Ecosystem
npm
Packages
openclaw
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-294
Reviewed
2026-04-03

Affected packages

• npm openclaw: < 2026.3.31 → fixed in 2026.3.31

Description

Summary Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding Current Maintainer Triage • Status: narrow • Normalized severity: low • Assessment: Shipped v2026.3.28 replay hashing treated equivalent Telnyx Base64/Base64URL signatures as distinct requests, but signature verification still held, so lower to low. Affected Packages / Versions • Package: `openclaw` (npm) • Latest published npm version: `2026.3.31` • Vulnerable version range: `= 2026.3.31` • First stable tag containing the fix: `v2026.3.31` Fix Commit(s) • `ad77666054651c1fd77b1dc60fd6a8db6600a29a` — 2026-03-30T20:01:43+01:00 Release Process Note • The fix is already present in released version `2026.3.31`. • This draft looks ready for final maintainer disposition or publication, not additional code-fix work. OpenClaw thanks @AntAISecurityLab for reporting.

Related

Alias · CVE (1)

  • CVE-2026-41351 OpenClaw before 2026.3.31 contains a replay detection bypass vulnerability in webhook signature handling that treats Base64 and Base64URL… vulnerability

Weakness · CWE (1)

  • CWE-294 Authentication Bypass by Capture-replay weakness

References