Medium severity5.3NVD Advisory· Published Apr 23, 2026· Updated Apr 28, 2026
CVE-2026-41351
CVE-2026-41351
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
openclawnpm | < 2026.3.31 | 2026.3.31 |
Affected products
2Patches
Vulnerability mechanics
References
6- github.com/openclaw/openclaw/commit/ad77666054651c1fd77b1dc60fd6a8db6600a29anvdPatchWEB
- github.com/advisories/GHSA-37v6-fxx8-xjmxghsaADVISORY
- github.com/openclaw/openclaw/security/advisories/GHSA-37v6-fxx8-xjmxnvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-41351ghsaADVISORY
- www.vulncheck.com/advisories/openclaw-webhook-replay-detection-bypass-via-base64-signature-re-encodingnvdThird Party AdvisoryWEB
- github.com/openclaw/openclaw/releases/tag/v2026.3.31ghsaWEB
News mentions
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