{"id":"GHSA-m958-864j-xq5w","summary":"Duplicate Advisory: OpenClaw: Telnyx Webhook Replay Detection Bypass via Base64 Signature Re-encoding","details":"### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-37v6-fxx8-xjmx.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maintaining valid signature verification.","modified":"2026-05-05T16:08:35.040658Z","published":"2026-04-24T00:31:52Z","withdrawn":"2026-05-04T21:59:01Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-05-04T21:59:01Z","nvd_published_at":"2026-04-23T22:16:42Z","cwe_ids":["CWE-294"],"severity":"MODERATE"},"references":[{"type":"WEB","url":"https://github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmx"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-41351"},{"type":"WEB","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"}],"affected":[{"package":{"name":"openclaw","ecosystem":"npm","purl":"pkg:npm/openclaw"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"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"}}],"schema_version":"1.9.0","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"}]}