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CVE-2026-28481— OpenClaw < 2026.2.1 - Bearer Token Leakage via MS Teams Attachment Downloader Suffix Matching

CVSS 6.5 · Medium EPSS 0.04% · P11
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I. Basic Information for CVE-2026-28481

Vulnerability Information
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Vulnerability Title
OpenClaw < 2026.2.1 - Bearer Token Leakage via MS Teams Attachment Downloader Suffix Matching
Source: NVD (National Vulnerability Database)
Vulnerability Description
OpenClaw versions 2026.1.30 and earlier, contain an information disclosure vulnerability, patched in 2026.2.1, in the MS Teams attachment downloader (optional extension must be enabled) that leaks bearer tokens to allowlisted suffix domains. When retrying downloads after receiving 401 or 403 responses, the application sends Authorization bearer tokens to untrusted hosts matching the permissive suffix-based allowlist, enabling token theft.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过发送数据的信息暴露
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 2026.2.1之前版本存在安全漏洞，该漏洞源于MS Teams附件下载器在收到401或403响应后重试下载时，会将授权承载令牌发送到与宽松的基于后缀的允许列表匹配的不受信任主机，可能导致令牌窃取。
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 ~ 2026.1.30 -

II. Public POCs for CVE-2026-28481

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III. Intelligence Information for CVE-2026-28481

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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-2026-284728.1 HIGHOpenClaw < 2026.2.2 - Device Identity Check Bypass in Gateway WebSocket Connect Handshake
CVE-2026-284478.1 HIGHOpenClaw 2026.1.29-beta.1 < 2026.2.1 - Path Traversal in Plugin Installation via Package N
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-201

V. Comments for CVE-2026-28481

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