EUVD-2026-17395

OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesiz...

Duplicate Advisory: OpenClaw's MS Teams sender allowlist bypass when route allowlist is configured and sender allowlist is empty

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-g7cr-9h7q-4qxq. This link is maintained to preserve external references. Original Description OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows...

CVE-2026-34509

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CVE-2026-34509 OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration

OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesiz...

CVE-2026-34509

OpenClaw CVE-2026-34509 affects the Microsoft Teams plugin prior to version 2026.3.8. The vulnerability is a sender allowlist bypass: if a team/channel route allowlist uses an empty groupAllowFrom parameter, the message handler synthesizes wildcard sender authorization, allowing any sender within...

CVE-2026-34506 OpenClaw < 2026.3.8 - Sender Allowlist Bypass in Microsoft Teams Plugin via Route Allowlist Configuration

OpenClaw before 2026.3.8 contains a sender allowlist bypass vulnerability in its Microsoft Teams plugin that allows unauthorized senders to bypass intended authorization checks. When a team/channel route allowlist is configured with an empty groupAllowFrom parameter, the message handler synthesiz...

OpenClaw 安全漏洞

OpenClaw is an open-source intelligent artificial assistant developed by OpenClaw. Versions of OpenClaw prior to 2026.3.8 contained security vulnerabilities. These vulnerabilities stemmed from a bypass of the sender whitelist in Microsoft Teams plugins, which could allow unauthorized senders to...

OpenClaw: MS Teams Feedback Invocation Bypasses Sender Allowlists and Records Unauthorized Session Feedback

Summary MS Teams Feedback Invoke Bypasses Sender Allowlists and Records Unauthorized Session Feedback Affected Packages / Versions - Package: openclaw - Affected versions: = 2026.3.24 - First patched version: 2026.3.25 - Latest published npm version at verification time: 2026.3.24 Details Microso...

CVE-2026-32037 OpenClaw < 2026.2.22 - Redirect Chain Bypass of Media Host Allowlist in MSTeams Attachment Handling

OpenClaw versions prior to 2026.2.22 fail to consistently validate redirect chains against configured mediaAllowHosts allowlists during MSTeams media downloads. Attackers can supply or influence attachment URLs to force redirects to non-allowlisted targets, bypassing SSRF boundary controls...

CVE-2026-32037 OpenClaw < 2026.2.22 - Redirect Chain Bypass of Media Host Allowlist in MSTeams Attachment Handling

OpenClaw versions prior to 2026.2.22 fail to consistently validate redirect chains against configured mediaAllowHosts allowlists during MSTeams media downloads. Attackers can supply or influence attachment URLs to force redirects to non-allowlisted targets, bypassing SSRF boundary controls...

CVE-2026-32037

OpenClaw versions prior to 2026.2.22 fail to consistently validate redirect chains against configured mediaAllowHosts allowlists during MSTeams media downloads. Attackers can supply or influence attachment URLs to force redirects to non-allowlisted targets, bypassing SSRF boundary controls...

EUVD-2026-13322

OpenClaw versions prior to 2026.2.22 fail to consistently validate redirect chains against configured mediaAllowHosts allowlists during MSTeams media downloads. Attackers can supply or influence attachment URLs to force redirects to non-allowlisted targets, bypassing SSRF boundary controls...

Help on the line: How a Microsoft Teams support call led to compromise

In our eighth Cyberattack Series report, Microsoft Incident Response—the Detection and Response Team DART—investigates a recent identity-first, human-operated intrusion that relied less on exploiting software vulnerabilities and more on deception and legitimate tools. After a customer reached out...

CVE-2026-2476

Mattermost Plugins

Authentication Bypass by Alternate Name

Overview openclaw is a 🦞 OpenClaw — Personal AI Assistant Affected versions of this package are vulnerable to Authentication Bypass by Alternate Name in the Microsoft Teams group sender authorization process when a route allowlist is configured and the sender allowlist is empty. An attacker can...

GHSA-G7CR-9H7Q-4QXQ OpenClaw's MS Teams sender allowlist bypass when route allowlist is configured and sender allowlist is empty

OpenClaw's Microsoft Teams plugin widened group sender authorization when a team/channel route allowlist was configured but groupAllowFrom was empty. Before the fix, a matching route allowlist entry could cause the message handler to synthesize wildcard sender authorization for that route, allowi...

Microsoft多款产品 安全漏洞

Microsoft Excel is a product of the American company Microsoft. Microsoft Excel is a spreadsheet processing software within the Office suite. Microsoft Edge is a web browser that comes with systems running Windows 10 and later versions. Microsoft Word is a word processing software within the Offi...

PT-2026-29237

Name of the Vulnerable Software and Affected Versions OpenClaw versions prior to 2026.3.8 Description The software contains a sender allowlist bypass issue in its Microsoft Teams plugin. This allows unauthorized senders to circumvent authorization checks. Specifically, when a team/channel route...

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

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...

CVE-2026-28481

OpenClaw (npm package) up to version 2026.1.30 contains an information disclosure vulnerability in the MS Teams attachment downloader (extension must be enabled). When retrying downloads after 401/403 responses, the code may send Authorization: Bearer tokens to untrusted hosts that match a permis...