CVE-2026-100558— OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket Upgrade
Quick assessment
Affected
OpenClaw OpenClaw
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 版本在 2026.8.1 之前存在一个资源耗尽漏洞，该漏洞位于 Gateway 监听器中。未认证的攻击者可以通过发送 WebSocket 升级请求（但不符合对应的连接语义）来保持响应套接字的连接，从而导致资源被占用。攻击者可反复发送畸形的升级请求，耗尽监听器资源，最终导致服务拒绝（DoS），且此过程不会消耗 WebSocket 预认证连接预算。
Possible ATT&CK Techniques 2 AI
T1190 · Exploit Public-Facing Application T1499 · Endpoint Denial of Service
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-100558
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
OpenClaw before 2026.8.1 Resource Exhaustion via WebSocket Upgrade
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw versions before 2026.8.1 contain a resource exhaustion vulnerability in the Gateway listener that allows unauthenticated clients to retain response sockets by sending WebSocket upgrade requests without matching connection semantics. Attackers can repeatedly send malformed upgrade requests to exhaust listener resources and cause denial of service without consuming the WebSocket pre-auth connection budget.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未加控制的资源消耗(资源穷尽)
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-100558
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-100558
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-100558 (2)
Same Patch Batch · OpenClaw · 2026-09-26 · 79 CVEs total
| CVE-2026-100575 | 8.8 HIGH | OpenClaw Slack before 2026.8.1 Authentication Bypass via Group DM |
| CVE-2026-100599 | 8.8 HIGH | OpenClaw 2026.5.1 before 2026.7.1 Remote Code Execution via googlemeet.chrome |
| CVE-2026-100580 | 8.8 HIGH | OpenClaw before 2026.7.1 Remote Code Execution via cron tool |
| CVE-2026-100586 | 8.8 HIGH | OpenClaw Codex before 2026.7.1 Authorization Bypass via Bind |
| CVE-2026-100544 | 8.8 HIGH | openclaw voice-call before 2026.8.1 Authorization Bypass |
| CVE-2026-100552 | 8.8 HIGH | OpenClaw before 2026.8.1 Policy Bypass via Native Tools |
| CVE-2026-100587 | 8.8 HIGH | OpenClaw before 2026.7.1 Authorization Bypass via Codex Install |
| CVE-2026-100596 | 8.8 HIGH | OpenClaw before 2026.7.1 Authorization Bypass via MCP Configuration |
| CVE-2026-100551 | 8.3 HIGH | OpenClaw iOS Control UI TLS Pin Enforcement Bypass |
| CVE-2026-100568 | 8.3 HIGH | OpenClaw before 2026.8.1 Unauthorized Command Job Access |
| CVE-2026-100557 | 8.3 HIGH | OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch |
| CVE-2026-100588 | 8.3 HIGH | OpenClaw before 2026.7.1 Authentication Bypass via node.invoke |
| CVE-2026-100589 | 8.3 HIGH | OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node |
| CVE-2026-100567 | 8.2 HIGH | OpenClaw before 2026.8.1 DNS Rebinding via CDP Hostname |
| CVE-2026-100532 | 8.1 HIGH | openclaw WhatsApp before 2026.8.1 Authentication Bypass |
| CVE-2026-100585 | 8.0 HIGH | OpenClaw before 2026.7.1 Authentication Bypass via MCP Channel |
| CVE-2026-100559 | 8.0 HIGH | OpenClaw before 2026.8.1 Command Injection via Escaped Newlines |
| CVE-2026-100561 | 8.0 HIGH | OpenClaw before 2026.8.1 Authentication Bypass via Exec Wrapper |
| CVE-2026-100570 | 7.8 HIGH | OpenClaw before 2026.8.1 Remote Code Execution via CLOUDSDK_PYTHON_ARGS |
| CVE-2026-100597 | 7.8 HIGH | OpenClaw before 2026.7.1 Path Traversal via Filesystem Race |
Showing top 20 of 79 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: OpenClaw
-
CVE-2026-102807
OpenClaw before 2026.9.4 Authorization Bypass via MCP App St -
CVE-2026-102806
OpenClaw before 2026.9.5 Sandbox Isolation Bypass via Media -
CVE-2026-100599
OpenClaw 2026.5.1 before 2026.7.1 Remote Code Execution via -
CVE-2026-100598
OpenClaw before 2026.7.1 Approval Binding Logic Error -
CVE-2026-100597
OpenClaw before 2026.7.1 Path Traversal via Filesystem Race
Same vendor: OpenClaw
-
CVE-2026-101884
OpenClaw Windows Node before 2026.7.1 Remote Code Execution -
CVE-2026-101883
OpenClaw Windows Node through 2026.9.4 SSRF via canvas.prese -
CVE-2026-101882
OpenClaw Windows Node before 2026.7.1 Remote Code Execution -
CVE-2026-101881
OpenClaw Windows Node before 2026.7.1 Denial of Service -
CVE-2026-101880
OpenClaw Windows Node before 2026.7.1 Authorization Bypass
Same weakness: CWE-400
-
CVE-2026-107227
AsyncHttpClient: Unbounded WebSocket permessage-deflate deco -
CVE-2026-107219
Excelize: Unbounded spinCount in agile decryption burns CPU -
CVE-2026-107208
ImageMagick: Denial of service with crafted XMP profile -
CVE-2026-106576
ImageMagick: Denial of service possible when parsing an XMP -
CVE-2026-106573
ImageMagick: Denial of service in MVG decoder
V. Comments for CVE-2026-100558
No comments yet