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CVE-2026-35646

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CVE-2026-35646

Published: Apr 9, 2026

Modified: Apr 10, 2026

PUBLISHED

CVSS v3.1

4.8

MEDIUM

Description

OpenClaw before 2026.3.25 contains a pre-authentication rate-limit bypass vulnerability in webhook token validation that allows attackers to brute-force weak webhook secrets. The vulnerability exists because invalid webhook tokens are rejected without throttling repeated authentication attempts, enabling attackers to guess weak tokens through rapid successive requests.

VendorProductVersions

OpenClaw

OpenClaw

affected
0 - < 2026.3.25
unaffected
2026.3.25

Weaknesses (CWE)

CWE-307

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

Low

Availability

None

References

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