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CVE-2026-28478— OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering

CVSS 7.5 · High EPSS 0.14% · P33
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I. Basic Information for CVE-2026-28478

Vulnerability Information
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Vulnerability Title
OpenClaw < 2026.2.13 - Denial of Service via Unbounded Webhook Request Body Buffering
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenClaw versions prior to 2026.2.13 contain a denial of service vulnerability in webhook handlers that buffer request bodies without strict byte or time limits. Remote unauthenticated attackers can send oversized JSON payloads or slow uploads to webhook endpoints causing memory pressure and availability degradation.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
不加限制或调节的资源分配
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 2026.2.13之前版本存在安全漏洞，该漏洞源于Webhook处理程序缓冲请求主体时没有严格的字节或时间限制，可能导致远程未经验证的攻击者发送过大的JSON有效载荷或慢速上传，造成内存压力和可用性下降。
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 ~ 2026.2.13 -

II. Public POCs for CVE-2026-28478

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III. Intelligence Information for CVE-2026-28478

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Same Patch Batch · OpenClaw · 2026-03-05 · 46 CVEs total

CVE-2026-284669.9 CRITICALOpenClaw < 2026.2.14 - Remote Code Execution via Node Invoke Approval Bypass
CVE-2026-283919.8 CRITICALOpenClaw < 2026.2.2 - Command Injection via cmd.exe Parsing Bypass in Allowlist Enforcemen
CVE-2026-284709.8 CRITICALOpenClaw < 2026.2.2 - Exec Allowlist Bypass via Command Substitution in Double Quotes
CVE-2026-284749.8 CRITICALOpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing
CVE-2026-284469.4 CRITICALOpenClaw < 2026.2.1 - Inbound Allowlist Policy Bypass in voice-call Extension via Empty Ca
CVE-2026-296108.8 HIGHOpenClaw < 2026.2.14 - Command Hijacking via Unsafe PATH Handling
CVE-2026-284858.4 HIGHOpenClaw 2026.1.5 < 2026.2.12 - Missing Authentication in Browser Control HTTP Endpoints
CVE-2026-284638.4 HIGHOpenClaw < 2026.2.14 - Arbitrary File Read via Shell Expansion in Safe Bins Allowlist
CVE-2026-284768.3 HIGHOpenClaw < 2026.2.14 - Server-Side Request Forgery in Tlon Extension Authentication
CVE-2026-284518.3 HIGHOpenClaw < 2026.2.14 - SSRF via Feishu Extension Media Fetching
CVE-2026-284478.1 HIGHOpenClaw 2026.1.29-beta.1 < 2026.2.1 - Path Traversal in Plugin Installation via Package N
CVE-2026-284728.1 HIGHOpenClaw < 2026.2.2 - Device Identity Check Bypass in Gateway WebSocket Connect Handshake
CVE-2026-284588.1 HIGHOpenClaw 2026.1.20 < 2026.2.1 - Missing Authentication in Browser Relay /cdp WebSocket End
CVE-2026-284738.1 HIGHOpenClaw < 2026.2.2 - Authorization Bypass via /approve Chat Command
CVE-2026-284687.7 HIGHOpenClaw 2026.1.29-beta.1 < 2026.2.14 - Authentication Bypass in Sandbox Browser Bridge Se
CVE-2026-283937.7 HIGHOpenClaw 2.0.0-beta3 < 2026.2.14 - Arbitrary JavaScript Module Loading via Hook Transform
CVE-2026-283927.5 HIGHOpenClaw < 2026.2.14 - Privilege Escalation in Slack Slash Command Handler via Direct Mess
CVE-2026-284627.5 HIGHOpenClaw < 2026.2.13 - Path Traversal in Trace and Download Output Paths
CVE-2026-284797.5 HIGHOpenClaw < 2026.2.15 - Cache Poisoning via Deprecated SHA-1 Hash in Sandbox Configuration
CVE-2026-296117.5 HIGHOpenClaw < 2026.2.14 - Local File Inclusion via mediaPath Parameter in BlueBubbles Media H

Showing top 20 of 46 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-28478

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