Jwt Attack CVE-2026-41301

MEDIUM
Improper Verification of Cryptographic Signature (CWE-347)
2026-04-21 [email protected]
Authentication Bypass Jwt Attack
6.9
CVSS 4.0
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CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/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
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

1
Analysis Generated
Apr 21, 2026 - 00:40 vuln.today

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 3 npm packages depend on openclaw (3 direct, 0 indirect)

Ecosystem-wide dependent count for version 2026.3.22.

DescriptionNVD

OpenClaw versions 2026.3.22 before 2026.3.31 contain a signature verification bypass vulnerability in the Nostr DM ingress path that allows pairing challenges to be issued before event signature validation. An unauthenticated remote attacker can send forged direct messages to create pending pairing entries and trigger pairing-reply attempts, consuming shared pairing capacity and triggering bounded relay and logging work on the Nostr channel.

AnalysisAI

OpenClaw 2026.3.22 through 2026.3.30 contain a signature verification bypass in the Nostr direct message (DM) ingress handler that processes pairing challenges before validating event signatures. Remote unauthenticated attackers can send forged DMs to create bogus pending pairing entries, exhaust shared pairing capacity, and trigger unbounded relay and logging work on the Nostr channel, causing denial of service. …

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CVE-2026-41301 vulnerability details – vuln.today
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