{
"id": "GHSA-m958-864j-xq5w",
"aliases": [],
"details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx. This link is maintained to preserve external references.\n\n### Original Description\nOpenClaw 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.",
"summary": "Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding",
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2026.3.31"
}
]
}
],
"package": {
"name": "openclaw",
"ecosystem": "npm"
}
}
],
"modified": "2026-05-04T21:59:01Z",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"
},
{
"type": "CVSS_V4",
"score": "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"
}
],
"published": "2026-04-24T00:31:52Z",
"withdrawn": "2026-05-04T21:59:01Z",
"references": [
{
"url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmx",
"type": "WEB"
},
{
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-41351",
"type": "ADVISORY"
},
{
"url": "https://github.com/openclaw/openclaw/commit/ad77666054651c1fd77b1dc60fd6a8db6600a29a",
"type": "WEB"
},
{
"url": "https://www.vulncheck.com/advisories/openclaw-webhook-replay-detection-bypass-via-base64-signature-re-encoding",
"type": "WEB"
}
],
"schema_version": "1.4.0",
"database_specific": {
"cwe_ids": [
"CWE-294"
],
"severity": "MODERATE",
"github_reviewed": true,
"nvd_published_at": "2026-04-23T22:16:42Z",
"github_reviewed_at": "2026-05-04T21:59:01Z"
}
}