GHSA-m958-864j-xq5w

Suggest an improvement
Source
https://github.com/advisories/GHSA-m958-864j-xq5w
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m958-864j-xq5w/GHSA-m958-864j-xq5w.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-m958-864j-xq5w
Downstream
Withdrawn
2026-05-04T21:59:01Z
Published
2026-04-24T00:31:52Z
Modified
2026-05-05T16:08:35Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS Calculator
  • 6.3 (Medium) CVSS_V4 - 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding
Details

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This advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx.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.

Database specific 
{
    "cwe_ids":  [
        "CWE-294"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-05-04T21:59:01Z",
    "nvd_published_at":  "2026-04-23T22:16:42Z",
    "severity":  "MODERATE"
}
References

Affected packages

npm / openclaw

Package

Name
openclaw
View open source insights on deps.dev
Purl
pkg:npm/openclaw

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
2026.3.31

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-m958-864j-xq5w/GHSA-m958-864j-xq5w.json"