CVE-2026-100572
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Summary
OpenClaw versions >= 2026.3.25 and < 2026.8.1 apply invalid-token rate limiting for Synology Chat webhooks before authentication and key the limit on the raw proxy socket address. In deployments where OpenClaw sits behind a trusted reverse proxy or tunnel and multiple external clients share a single socket address, an unauthenticated sender can exhaust the shared invalid-token budget, causing subsequent legitimate Synology Chat webhook callbacks to be rejected until the rate-limit window expires. The attacker cannot obtain a valid token or read message data; the impact is temporary loss of channel availability. Fixed in 2026.8.1.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OpenClaw | OpenClaw | 2026.3.25 < 2026.8.1 | affected |
| OpenClaw | OpenClaw | 2026.8.1 | unaffected |
Weaknesses
- CWE-400: Uncontrolled Resource Consumption
References
- https://github.com/openclaw/openclaw/security/advisories/GHSA-fw6q-2frm-jxxr
- https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-denial-of-service-via-rate-limit
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