EUVD-2026-36561

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, DetailedTagSerializertaggroupnames returned every tag group a tag belonged to without filtering against the requesting...

EUVD-2026-36558

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, four authorization/disclosure issues in the chat plugin one also involving discourse-calendar: read-only category users...

CVE-2026-45085 Discourse: Chat misauthorization and information disclosure

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, four authorization/disclosure issues in the chat plugin one also involving discourse-calendar: read-only category users...

EUVD-2026-36557

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, the AI "explain" helper only checks cansee? on the post being explained, not its replytopost, so any authenticated user wi...

CVE-2026-44783

Product/Component : Discourse (open-source discussion platform). Issue : A flaw in how replies to whispers is handled allows authenticated users outside the groups configured in whispers_allowed_groups to post into a topic’s staff-only whisper channel. The injected content is visible to whisperer...

CVE-2026-44786 Discourse: Public chat MessageBus broadcasts are not restricted to chat-eligible users

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.4, 2026.3.0-latest to before 2026.3.1, and 2026.4.0-latest to before 2026.4.1, chat events for public category channels are published to MessageBus without permission scoping, so any MessageBus...

CVE-2026-54362 MISP template builder exposes non-visible custom galaxies across organisations

An incorrect visibility condition in the MISP event template builder allowed authenticated non-site-admin users to view galaxies that should not have been visible to their organisation. The custom access-control condition intended to restrict galaxies to those owned by the user’s organisation or...

CVE-2026-54362

The CVE concerns MISP's event template builder where an incorrect visibility condition allowed authenticated non-site-admin users to see galaxies outside their organisation. The root cause is a PHP comparison expression used instead of a query condition, causing enabled galaxies, including organi...

CVE-2026-54362 MISP template builder exposes non-visible custom galaxies across organisations

An incorrect visibility condition in the MISP event template builder allowed authenticated non-site-admin users to view galaxies that should not have been visible to their organisation. The custom access-control condition intended to restrict galaxies to those owned by the user’s organisation or...

EUVD-2026-35392

TYPO3 CMS: Destructive Actions on File Mount Folders...

WordPress Meow Gallery plugin <= 5.4.4 - Missing Authorization to Authenticated (Author+) Shortcode creation vulnerability

Missing Authorization to Authenticated Author+ Shortcode creation vulnerability discovered by Chawabhon Netisingha JNX03 in WordPress Plugin Meow Gallery versions = 5.4.4...

EUVD-2026-36551

MISP contains an insecure default configuration in which the Security.checksecfetchsiteheader control is disabled. When this setting is disabled, state-changing requests such as POST, PUT, or AJAX requests are not restricted based on the browser-provided Sec-Fetch-Site header. A remote...

GHSA-QCMW-6RM2-5X78 TYPO3 CMS has Broken Access Control in its DataHandler

Problem Backend users were able to move records to a different page without having edit permissions on the source page. Solution Update to TYPO3 versions 13.4.31 LTS, 14.3.3 LTS that fix the problem described. Credits TYPO3 CMS thanks Hyunseo Shin for reporting this issue, and TYPO3 security team...

EUVD-2026-36546

Koel is a free, open-source music streaming solution. Prior to version 9.7.1, Koel contains a Server-Side Request Forgery SSRF vulnerability in the radio station creation endpoint POST /api/radio/stations. The url field validation rules are declared without the bail keyword, so the...

CVE-2026-44975

Frappe is a full-stack web application framework. Prior to versions 15.107.2 and 16.17.4, any authenticated user can reset onboarding for all users in the system. This issue has been patched in versions 15.107.2 and 16.17.4...

EUVD-2026-36499

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 fail to require system-level permission when patching protected default system roles, which allows authenticated users with delegated user-management permissions to escalate privileges by altering built-i...

CVE-2026-3433 Mattermost fails to scope role_updated websocket events to authorized team and channel members

Mattermost versions 11.6.x = 11.6.1, 11.5.x = 11.5.4, 10.11.x = 10.11.15, 10.11.x = 10.11.16 fail to restrict roleupdated websocket event broadcasts to members of the affected team or channel which allows an authenticated attacker with guest-level access to observe permission scheme change...

EUVD-2026-36484

A code injection vulnerability in version 0.4.17 or later of the ChromaDB Python project allows an authenticated attacker to run arbitrary code on the server by sending a malicious model repository and trustremotecode set to true in...

CVE-2026-8828

A lack of authorization validation in version 1.0.0 or later of the ChromaDB Rust project allows any authenticated users to arbitrarily read, write, update, or delete data in any tenant's collection regardless of which tenant they belong to...

CVE-2026-8828

CVE-2026-8828 describes a lack of authorization validation in ChromaDB Rust (version 1.0.0 and later) that allows any authenticated user to arbitrarily read, write, update, or delete data in any tenant’s collection, regardless of tenant ownership. The core issue is insufficient access control in ...