CVE-2026-35628
Medium
Description
OpenClaw before 2026.3.25 contains a missing rate limiting vulnerability in Telegram webhook authentication that allows attackers to brute-force weak webhook secrets. The vulnerability enables repeated authentication guesses without throttling, permitting attackers to systematically guess webhook secrets through brute-force attacks.
SeverityMedium
CVSS4.8
Exploit probability—
ProductOpenclaw
PublishedApr 9, 2026
First seenApr 9, 2026
Weakness typeCWE-307CWE-307
How to fix
Update
- openclaw openclaw2026.3.25 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| openclaw openclaw | v < 2026.3.25 | 2026.3.25 |
| openclawnpm | v ≤ 2026.3.24 | — |
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