CVE-2026-41351
OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding
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: `<=2026.3.28` - Patched versions: `>= 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.
How to fix CVE-2026-41351
To remediate CVE-2026-41351, upgrade the affected package to a fixed version below.
- —upgrade to 2026.3.31 or later
Is CVE-2026-41351 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2026.3.31
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |