CVE-2026-35628

low-risk
Published 2026-04-09

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.

Do I need to act?

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0.04% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.8/10 Medium
NETWORK / HIGH complexity
20
/ 100
low-risk
Severity 15/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal