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GHSA-37v6-fxx8-xjmx

MediumCVSS 5.3 / 10
Published Apr 3, 2026·Last modified May 6, 2026
Affected Components(0)

No affected components available

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.

Risk Scores
Base Score
5.3

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a low impact on the confidentiality of the information.

Threat Intelligence
4.9

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.33%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Not available

We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.

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