CVE-2026-41351

MEDIUM

5.3

Descricao

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.

Detalhes CVE

Pontuacao CVSS v3.15.3

SeveridadeMEDIUM

Vetor CVSSCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosNONE

Interacao do usuarioNONE

Publicado4/23/2026

Ultima modificacao4/24/2026

Fontenvd

Avistamentos honeypot0

Fraquezas (CWE)

CWE-294

Referencias

https://github.com/openclaw/openclaw/commit/ad77666054651c1fd77b1dc60fd6a8db6600a29a(disclosure@vulncheck.com)

https://github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmx(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/openclaw-webhook-replay-detection-bypass-via-base64-signature-re-encoding(disclosure@vulncheck.com)

Correlacoes IOC

Sem correlacoes registradas

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