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CVE-2026-100571— OpenClaw before 2026.8.1 SMS Webhook Rate Limit Bypass

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（npm 包名为 ‘openclaw’）在版本 >= 2026.6.6 且 < 2026.8.1 中存在一个安全漏洞。该漏洞的表现为：在验证 Twilio 签名之前，系统会先对 SMS webhook 的无效请求应用速率限制（rate limit）；同时，系统仅通过原始代理套接字地址（raw proxy socket address）来识别客户端。 在部署场景中，如果 SMS/Twilio webhook 位于受信任的反向代理或隧道之后，使得多个外部客户端共享同一个套接字地址，则未经身份验证的远程攻

CVSS 5.3 · Medium EPSS 0.35% · P26

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw 2026.6.6< 2026.8.1 affected
2026.8.1 unaffected
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I. Basic Information for CVE-2026-100571

Vulnerability Information
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Vulnerability Title
OpenClaw before 2026.8.1 SMS Webhook Rate Limit Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw (npm package 'openclaw') versions >= 2026.6.6 and < 2026.8.1 apply the SMS webhook invalid-request rate limit before Twilio signature verification and identify clients only by the raw proxy socket address. In deployments where the SMS/Twilio webhook sits behind a trusted reverse proxy or tunnel so that multiple external clients share one socket address, an unauthenticated remote sender can exhaust the shared pre-authentication rate-limit budget with invalid requests, causing subsequent correctly signed Twilio callbacks to receive HTTP 429 responses. The result is temporary inbound SMS loss while the shared window remains exhausted; the attacker cannot forge a callback or access message data. Fixed in 2026.8.1.
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:L
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

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 2026.6.6 ~ 2026.8.1 -

II. Public POCs for CVE-2026-100571

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III. Intelligence Information for CVE-2026-100571

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Vendor Advisories for CVE-2026-100571 (2)

Same Patch Batch · OpenClaw · 2026-09-26 · 79 CVEs total

CVE-2026-100580 8.8 HIGH OpenClaw before 2026.7.1 Remote Code Execution via cron tool
CVE-2026-100575 8.8 HIGH OpenClaw Slack before 2026.8.1 Authentication Bypass via Group DM
CVE-2026-100596 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via MCP Configuration
CVE-2026-100586 8.8 HIGH OpenClaw Codex before 2026.7.1 Authorization Bypass via Bind
CVE-2026-100587 8.8 HIGH OpenClaw before 2026.7.1 Authorization Bypass via Codex Install
CVE-2026-100544 8.8 HIGH openclaw voice-call before 2026.8.1 Authorization Bypass
CVE-2026-100599 8.8 HIGH OpenClaw 2026.5.1 before 2026.7.1 Remote Code Execution via googlemeet.chrome
CVE-2026-100552 8.8 HIGH OpenClaw before 2026.8.1 Policy Bypass via Native Tools
CVE-2026-100551 8.3 HIGH OpenClaw iOS Control UI TLS Pin Enforcement Bypass
CVE-2026-100589 8.3 HIGH OpenClaw before 2026.7.1 Sandbox Bypass via Browser Node
CVE-2026-100588 8.3 HIGH OpenClaw before 2026.7.1 Authentication Bypass via node.invoke
CVE-2026-100557 8.3 HIGH OpenClaw before 2026.8.1 Authorization Bypass via Skill Tool Dispatch
CVE-2026-100568 8.3 HIGH OpenClaw before 2026.8.1 Unauthorized Command Job Access
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-2026-100561 8.0 HIGH OpenClaw before 2026.8.1 Authentication Bypass via Exec Wrapper
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-2026-100597 7.8 HIGH OpenClaw before 2026.7.1 Path Traversal via Filesystem Race
CVE-2026-100570 7.8 HIGH OpenClaw before 2026.8.1 Remote Code Execution via CLOUDSDK_PYTHON_ARGS

Showing top 20 of 79 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-400

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