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

Goal: 1000 CNY · Raised: 1000 CNY

100.0%
Buy Us a Coffee

CVE-2026-35646— OpenClaw < 2026.3.25 - Pre-Authentication Rate-Limit Bypass in Webhook Token Validation

CVSS 4.8 · Medium EPSS 0.07% · P22
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2026-35646

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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 < 2026.3.25 - Pre-Authentication Rate-Limit Bypass in Webhook Token Validation
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenClaw before 2026.3.25 contains a pre-authentication rate-limit bypass vulnerability in webhook token validation that allows attackers to brute-force weak webhook secrets. The vulnerability exists because invalid webhook tokens are rejected without throttling repeated authentication attempts, enabling attackers to guess weak tokens through rapid successive requests.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
过多认证尝试的限制不恰当
Source: NVD (National Vulnerability Database)
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 2026.3.25之前版本存在安全漏洞，该漏洞源于Webhook令牌验证存在预身份验证速率限制绕过，可能导致暴力破解攻击。
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

VendorProductAffected VersionsCPESubscribe
OpenClawOpenClaw 0 ~ 2026.3.25 -

II. Public POCs for CVE-2026-35646

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-35646

请登录查看更多情报信息。

Same Patch Batch · OpenClaw · 2026-04-09 · 25 CVEs total

CVE-2026-356398.8 HIGHOpenClaw < 2026.3.22 - Privilege Escalation via device.pair.approve Scope Validation
CVE-2026-356388.8 HIGHOpenClaw < 2026.3.22 - Privilege Escalation via Self-Declared Scopes in Trusted-Proxy Cont
CVE-2026-345128.1 HIGHOpenClaw < 2026.3.25 - Improper Access Control in /sessions/:sessionKey/kill Endpoint
CVE-2026-356458.1 HIGHOpenClaw < 2026.3.25 - Privilege Escalation via Synthetic operator.admin in deleteSession
CVE-2026-356257.8 HIGHOpenClaw < 2026.3.25 - Privilege Escalation via Silent Local Shared-Auth Reconnect
CVE-2026-356297.4 HIGHOpenClaw < 2026.3.25 - Server-Side Request Forgery via Unguarded Configured Base URLs in C
CVE-2026-356377.3 HIGHOpenClaw < 2026.3.22 - Premature Cite Expansion Before Authorization in Channel and DM
CVE-2026-356327.1 HIGHOpenClaw <= 2026.2.22 - Symlink Traversal via IDENTITY.md appendFile in agents.create/upda
CVE-2026-356316.5 MEDIUMOpenClaw < 2026.3.22 - Missing Authorization Enforcement in Internal ACP Chat Commands
CVE-2026-356186.5 MEDIUMOpenClaw < 2026.3.23 - Replay Identity Drift via Query-Only Variants in Plivo V2 Verificat
CVE-2026-356276.5 MEDIUMOpenClaw < 2026.3.22 - Unauthenticated Cryptographic Work in Nostr Inbound DM Handling
CVE-2026-356366.5 MEDIUMOpenClaw 2026.3.11 < 2026.3.25 - Session Isolation Bypass via sessionId Resolution
CVE-2026-356446.5 MEDIUMOpenClaw < 2026.3.22 - Credential Exposure via baseUrl Fields in Gateway Snapshots
CVE-2026-356225.9 MEDIUMOpenClaw < 2026.3.22 - Improper Authentication Verification in Google Chat Webhook
CVE-2026-356335.3 MEDIUMOpenClaw < 2026.3.22 - Unbounded Memory Allocation via Remote Media Error Responses
CVE-2026-356405.3 MEDIUMOpenClaw < 2026.3.25 - Denial of Service via Unauthenticated Webhook Request Parsing
CVE-2026-356265.3 MEDIUMOpenClaw < 2026.3.22 - Unauthenticated Resource Exhaustion via Voice Call Webhook
CVE-2026-356345.1 MEDIUMOpenClaw < 2026.3.23 - Authentication Bypass via Local-Direct Requests in Canvas Gateway
CVE-2026-356354.8 MEDIUMOpenClaw < 2026.3.22 - Webhook Path Route Replacement Vulnerability in Synology Chat
CVE-2026-356284.8 MEDIUMOpenClaw < 2026.3.25 - Brute-Force Attack via Missing Telegram Webhook Rate Limiting

Showing top 20 of 25 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-35646

No comments yet

Leave a comment