CVE-2026-2476 MS Teams plugin sensitive config values not properly masked in support packets

Mattermost Plugins versions =2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606...

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...

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...

OpenClaw Information Disclosure Vulnerability (CNVD-2026-13601)

OpenClaw is an intelligent artificial assistant open-sourced by OpenClaw. OpenClaw suffers from an information disclosure vulnerability that originates when the MS Teams attachment downloader, when retrying to download after receiving a 401 or 403 response, sends an authorization bearer token to ...

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...

Can the Security Platform Finally Deliver for the Mid-Market?

Mid-market organizations are constantly striving to achieve security levels on a par with their enterprise peers. With heightened awareness of supply chain attacks, your customers and business partners are defining the security level you must meet. What if you could be the enabler for your...

CVE-2026-28481

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 < 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 < 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...

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...

EUVD-2026-9927

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...

OpenClaw 安全漏洞

OpenClaw is an intelligent artificial assistant open-sourced by OpenClaw. OpenClaw suffers from an information disclosure vulnerability that originates when the MS Teams attachment downloader, when retrying to download after receiving a 401 or 403 response, sends an authorization bearer token to ...

Fake Zoom, Teams Meeting Invites Use Compromised Certificates to Drop Malware

A new phishing campaign is using stolen certificates from TrustConnect Software PTY LTD to sign malware. By impersonating updates for Zoom and Microsoft Teams, hackers install RMM tools to gain persistent, privileged access to networks...

Incorrect Authorization

Overview @openclaw/msteams is an OpenClaw Microsoft Teams channel plugin Affected versions of this package are vulnerable to Incorrect Authorization through improper access control in the pairing store process. An attacker can gain unauthorized access to another account's direct message pairing b...

Microsoft Teams Access Control Error Vulnerability

Microsoft Teams is an American Microsoft Microsoft software for online meetings, chat, and cloud storage capabilities. Microsoft Teams suffers from an Access Control Error vulnerability that stems from improper access control and can be exploited by an attacker to cause an unauthorized attacker t...

GHSA-7QF6-H84J-8FQ4 OpenClaw: Microsoft Teams media fetch paths bypass shared SSRF guard model

Impact Microsoft Teams media handling used mixed fetch paths for Graph metadata/content and attachment auth-retry flows. Some paths bypassed the shared SSRF guard model and created inconsistent host/DNS enforcement across redirect/fetch hops. Affected Packages / Versions - Package: openclaw npm -...