| Component | OpenClaw |
| Severity | medium (CVSS 6.5) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| Published (NVD) | 2026-09-30 |
| Last modified | 2026-10-01 |
| Affected versions | < 2026.7.1 read from the advisory text: NVD has not published CPE data yet |
| Fixed in | 2026.7.1 |
| Weakness | CWE-770 |
| CISA KEV | not listed |
NVD description
OpenClaw Windows Node before 2026.7.1 contains an allocation of resources without limits vulnerability in the gateway WebSocket transport that allows connected gateways to exhaust node memory. Attackers can send an unending sequence of WebSocket continuation frames without EndOfMessage to cause unbounded memory growth until the node process crashes.
What to do
- Upgrade OpenClaw to
2026.7.1or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-101881
- https://github.com/openclaw/openclaw-windows-node/blob/v0.6.12/src/OpenClaw.Shared/WebSocketClientBase.cs#L217-L263
- https://github.com/openclaw/openclaw-windows-node/commit/1810e357aa0d0639099b347f31c746ba7d31512a
- https://github.com/openclaw/openclaw-windows-node/releases/tag/v2026.7.1
- https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-xxr2-xm56-9cw5
- https://www.vulncheck.com/advisories/openclaw-windows-node-before-2026.7.1-denial-of-service
Read more
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