CVE-2026-41351
Undergoing Analysis Undergoing Analysis - In Progress
BaseFortify

Publication date: 2026-04-23

Last updated on: 2026-04-28

Assigner: VulnCheck

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.
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Meta Information
Published
2026-04-23
Last Modified
2026-04-28
Generated
2026-06-16
EPSS Evaluated
2026-06-15
NVD
CVE-2026-41351
EUVD
EUVD-2026-25335
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
openclaw openclaw to 2026.3.31 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-294 A capture-replay flaw exists when the design of the product makes it possible for a malicious user to sniff network traffic and bypass authentication by replaying it to the server in question to the same effect as the original message (or with minor changes).
Attack-Flow Graph
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