CVE-2026-62220: OpenClaw 2026.2.25 < 2026.5.26 WebSocket Rate Limit Bypass

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-17 · updated 2026-10-23
Weakness: CWE-307

Description

OpenClaw 2026.2.25 before 2026.5.26 allow a lower-trust caller or configured input path to bypass non-browser rate limits on WebSocket authentication attempts. When the affected feature is enabled and reachable by lower-trust input, this can consume gateway resources and reduce service availability.

Affected products

OpenClaw: from 2026.2.25 before 2026.5.26 — fixed in 2026.5.26

How to fix

Upgrade to a fixed version: OpenClaw 2026.5.26. Check the vendor advisory for mitigations.

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-5p6w-wmh3-frfr
https://www.vulncheck.com/advisories/openclaw-websocket-rate-limit-bypass

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