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

Quick assessment

Affected
OpenClaw OpenClaw Windows Node
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

OpenClaw Windows Node 在 2026.7.1 之前版本中存在一个“无限制资源分配”漏洞，位于网关 WebSocket 传输层。该漏洞允许已连接的网关耗尽节点内存。攻击者可以发送一个无限长的 WebSocket 续帧序列（且未设置 EndOfMessage 标志），从而导致内存无限制增长，最终使节点进程崩溃。

CVSS 6.5 · Medium
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I. Basic Information for CVE-2026-101881

Vulnerability Information
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Vulnerability Title
OpenClaw Windows Node before 2026.7.1 Denial of Service
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw Windows Node 0 ~ 2026.7.1 -

II. Public POCs for CVE-2026-101881

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III. Intelligence Information for CVE-2026-101881

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Other References for CVE-2026-101881 (5)

Same Patch Batch · OpenClaw · 2026-09-30 · 6 CVEs total

CVE-2026-101880 8.8 HIGH OpenClaw Windows Node before 2026.7.1 Authorization Bypass
CVE-2026-101882 8.8 HIGH OpenClaw Windows Node before 2026.7.1 Remote Code Execution via system.execApprovals.set
CVE-2026-101884 7.5 HIGH OpenClaw Windows Node before 2026.7.1 Remote Code Execution via Environment Override
CVE-2026-101879 6.5 MEDIUM OpenClaw Windows Node before 2026.7.1-3 Missing Authorization
CVE-2026-101883 5.4 MEDIUM OpenClaw Windows Node through 2026.9.4 SSRF via canvas.present

IV. Related Vulnerabilities

Same product: OpenClaw Windows Node
Same vendor: OpenClaw
Same weakness: CWE-770

V. Comments for CVE-2026-101881

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