Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-33580— OpenClaw < 2026.3.28 - Brute Force Attack via Missing Rate Limiting on Webhook Shared Secret Authentication

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是OpenClaw开源的一个智能人工助理。 OpenClaw 2026.3.28之前版本存在安全漏洞，该漏洞源于Nextcloud Talk webhook身份验证缺少速率限制，可能导致攻击者对弱共享密钥进行暴力破解。

CVSS 6.5 · Medium EPSS 0.36% · P30

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenClaw OpenClaw < 2026.3.28 affected
2026.3.28 unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-33580

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 < 2026.3.28 - Brute Force Attack via Missing Rate Limiting on Webhook Shared Secret Authentication
Source: CVE Program / CVE List V5
Vulnerability Description
OpenClaw before 2026.3.28 contains a missing rate limiting vulnerability in the Nextcloud Talk webhook authentication that allows attackers to brute-force weak shared secrets. Attackers who can reach the webhook endpoint can exploit this to forge inbound webhook events by repeatedly attempting authentication without throttling.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
OpenClaw 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
OpenClaw是OpenClaw开源的一个智能人工助理。 OpenClaw 2026.3.28之前版本存在安全漏洞，该漏洞源于Nextcloud Talk webhook身份验证缺少速率限制，可能导致攻击者对弱共享密钥进行暴力破解。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenClaw OpenClaw 0 ~ 2026.3.28 -

II. Public POCs for CVE-2026-33580

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-33580

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-33580 (1)

Same Patch Batch · OpenClaw · 2026-03-31 · 20 CVEs total

CVE-2026-33579 9.9 CRITICAL OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device
CVE-2026-32917 9.8 CRITICAL OpenClaw < 2026.3.13 - Remote Command Injection via Unsanitized iMessage Attachment Paths
CVE-2026-32916 9.4 CRITICAL OpenClaw 2026.3.7 < 2026.3.11 - Authorization Bypass in Plugin Subagent Routes via Synthet
CVE-2026-32920 8.4 HIGH OpenClaw < 2026.3.12 - Arbitrary Code Execution via Auto-Discovery of Workspace Plugins
CVE-2026-34504 8.3 HIGH OpenClaw < 2026.3.28 - Server-Side Request Forgery via Unguarded Image Download in fal Pro
CVE-2026-33577 8.1 HIGH OpenClaw < 2026.3.28 - Insufficient Scope Validation in node.pair.approve
CVE-2026-34503 8.1 HIGH OpenClaw < 2026.3.28 - Incomplete WebSocket Session Termination on Device Removal and Toke
CVE-2026-32982 7.5 HIGH OpenClaw < 2026.3.13 - Telegram Bot Token Exposure in Media Fetch Error Logs
CVE-2026-32988 7.5 HIGH OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Unvalidated Temporary File Creation
CVE-2026-32971 7.1 HIGH OpenClaw < 2026.3.11 - Node-Host Approval UI Mismatch Allows Execution of Unintended Comma
CVE-2026-32976 6.5 MEDIUM OpenClaw < 2026.3.11 - Account-Scoped configWrites Policy Bypass via Channel Commands
CVE-2026-34505 6.5 MEDIUM OpenClaw < 2026.3.12 - Webhook Rate Limiting Bypass via Pre-Authentication Secret Validati
CVE-2026-33576 6.5 MEDIUM OpenClaw < 2026.3.28 - Unauthorized Media Download via Zalo Channel
CVE-2026-33581 6.5 MEDIUM OpenClaw < 2026.3.24 - Arbitrary File Read via mediaUrl and fileUrl Parameters
CVE-2026-32977 6.3 MEDIUM OpenClaw < 2026.3.11 - Sandbox Boundary Bypass via Unanchored writeFile Commit Path
CVE-2026-32921 6.3 MEDIUM OpenClaw < 2026.3.8 - Script Content Modification via Mutable Operand Binding in system.ru
CVE-2026-34506 4.3 MEDIUM OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlis
CVE-2026-33578 4.3 MEDIUM OpenClaw < 2026.3.28 - Sender Policy Allowlist Bypass via Policy Downgrade in Google Chat
CVE-2026-32970 2.5 LOW OpenClaw < 2026.3.11 - Credential Fallback Logic Bypass via Unavailable Local Auth SecretR

IV. Related Vulnerabilities

Same product: OpenClaw
Same vendor: OpenClaw
Same weakness: CWE-307

V. Comments for CVE-2026-33580

No comments yet

Leave a comment