CVE-2026-34505 Details
Description
OpenClaw before 2026.3.12 applies rate limiting only after successful webhook authentication, allowing attackers to bypass rate limits and brute-force webhook secrets. Attackers can submit repeated authentication requests with invalid secrets without triggering rate limit responses, enabling systematic secret guessing and subsequent forged webhook submission.
A vulnerability in OpenClaw versions prior to 2026.3.12 allows attackers to bypass rate limiting on webhook authentication. The issue arises because rate limiting is applied only after successful authentication, enabling repeated attempts to guess webhook secrets without triggering rate limit responses. This flaw facilitates systematic secret guessing, which can lead to forged webhook submissions.
Users are advised to update to OpenClaw version 2026.3.12 or later and to use strong webhook secrets.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Mar 31, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-307 | Improper Restriction of Excessive Authentication Attempts | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| openclaw openclaw | < 2026.3.12 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 2, 2026 | Initial Analysis | [email protected] |
| Mar 31, 2026 | CVE Modified | [email protected] |
| Mar 31, 2026 | New CVE Received | [email protected] |