CVE-2026-34505

Medium

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.

SeverityMedium

CVSS6.5

Exploit probability—

ProductOpenclaw

PublishedMar 31, 2026

First seenMar 31, 2026

Weakness typeCWE-307CWE-307

How to fix

Update

openclaw openclaw2026.3.12 or later
openclaw2026.3.12 or later

Vendor advisories

github.com/openclaw/openclaw/security/advisories/GHSA-5m9r-p9g7-679c

Affected products

Product	Affected versions	Fixed in
openclaw openclaw	v < 2026.3.12	2026.3.12
openclawnpm	v < 2026.3.12	2026.3.12

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