EUVD-2026-22915

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

GHSA-MH4X-RMRX-3HP4 Mattermost has session spoofing due to lack of single-use consumption of guest magic link tokens enforcement

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

CVE-2026-3590

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

CVE-2026-3590 Race Condition in Guest Magic Link Authentication Allows Token Reuse

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

CVE-2026-3590

Mattermost CVE-2026-3590 describes a race condition in the guest magic link authentication flow that fails to enforce atomic single-use for tokens. A valid magic link can be used to establish multiple independent authenticated sessions via concurrent requests on affected versions: Mattermost 10.1...

CVE-2026-3590 Race Condition in Guest Magic Link Authentication Allows Token Reuse

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

CVE-2026-3590 Race Condition in Guest Magic Link Authentication Allows Token Reuse

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

CVE-2026-3590

Mattermost versions 10.11.x = 10.11.12, 11.5.x = 11.5.0, 11.4.x = 11.4.2, 11.3.x = 11.3.2 fail to enforce atomic single-use consumption of guest magic link tokens, which allows an attacker with access to a valid magic link to establish multiple independent authenticated sessions via concurrent...

PT-2026-33054

Name of the Vulnerable Software and Affected Versions Mattermost versions 10.11.0 through 10.11.12 Mattermost version 11.5.0 Mattermost versions 11.4.0 through 11.4.2 Mattermost versions 11.3.0 through 11.3.2 Description Failure to enforce atomic single-use consumption of guest magic link tokens...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. Vulnerabilities exist in Mattermost versions 10.11.12 and earlier of the 10.11.x series, as well as versions 11.5.0 and earlier of the 11.5.x series, 11.4.2 and earlier of the 11.4.x series, and 11.3...

Exploit for CVE-2026-39912

CVE-2026-39912 - Xboard / V2Board Unauth Account Takeover M...

GHSA-X3F4-V83F-7WP2 Authorizer: Password reset token theft and full auth token redirect via unvalidated redirect_uri

Hi, I found that 6 endpoints in Authorizer accept a user-controlled redirecturi and append sensitive tokens to it without validating the URL against AllowedOrigins. The OAuth /app handler validates redirecturi at httphandlers/app.go:46, but the GraphQL mutations and verifyemail handler skip...

Open Redirect

Overview Affected versions of this package are vulnerable to Open Redirect through the redirecturi parameter in multiple endpoints ForgotPassword, MagicLinkLogin, Signup, InviteMembers, OAuthLoginHandler, VerifyEmailHandler which is not validated against AllowedOrigins. An attacker can obtain...

Authorizer: Password reset token theft and full auth token redirect via unvalidated redirect_uri

Hi, I found that 6 endpoints in Authorizer accept a user-controlled redirecturi and append sensitive tokens to it without validating the URL against AllowedOrigins. The OAuth /app handler validates redirecturi at httphandlers/app.go:46, but the GraphQL mutations and verifyemail handler skip...

Authorizer: CQL/N1QL Injection in Cassandra and Couchbase Backends via fmt.Sprintf String Interpolation

Vulnerability Details CWE: CWE-943 - Improper Neutralization of Special Elements in Data Query Logic All 66+ CQL queries in internal/storage/db/cassandradb/ use fmt.Sprintf to interpolate user-controlled values directly into CQL query strings without parameterization. Unauthenticated endpoints...

GHSA-R33W-FG8J-9C94 MagicLink: Insecure Deserialization of MagicLink Actions Leads to Remote Code Execution

Description MagicLink stores serialized action objects in the magiclinks.action database column and deserializes them without integrity validation or class allowlisting in src/MagicLink.php and src/Actions/ResponseAction.php. An attacker with the ability to manipulate database records e.g., via S...

EUVD-2022-34475

Malicious code in bioql PyPI...

EUVD-2025-4088

Malicious code in bioql PyPI...

GHSA-36RG-GFQ2-3H56 Better Auth Open Redirect Vulnerability in originCheck Middleware Affects Multiple Routes

Summary An open redirect has been found in the originCheck middleware function, which affects the following routes: /verify-email, /reset-password/:token, /delete-user/callback, /magic-link/verify, /oauth-proxy-callback. Details In the matchesPattern function, url.startsWith can be deceived with ...

CVE-2025-53535 Better Auth has an Open Redirect Vulnerability in originCheck Middleware Affecting Multiple Routes

Better Auth is an authentication and authorization library for TypeScript. An open redirect has been found in the originCheck middleware function, which affects the following routes: /verify-email, /reset-password/:token, /delete-user/callback, /magic-link/verify, /oauth-proxy-callback. This...