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...

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...

CVE-2026-44785

CVE-2026-44785 affects Discourse. The vulnerability arises because the AI "explain" helper validates can_see? only on the post being explained, allowing an authenticated user with access to the AI helper to read the raw contents of a hidden parent post by invoking Explain on a reply to it. Affect...

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-2026-44785 Discourse: Hidden reply-to post raw can be disclosed through AI explain prompts

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-2026-44785 Discourse: Hidden reply-to post raw can be disclosed through AI explain prompts

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-2026-44784 Discourse: Non-staff group owners can see email password in plaintext through group history

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, group owners who are not necessarily admins or moderators can view a group's outgoing email/SMTP credentials in plaintext...

CVE-2026-44784

Discourse has a vulnerability where non-staff group owners can access a group’s outgoing SMTP credentials in plaintext via the group history log (/groups/:name/logs.json). Affected fields include email_password, email_username, smtp_server, smtp_port, and smtp_ssl_mode, with SMTP password being t...

CVE-2026-44783 Discourse: Replying to a whisper lets non-whisperers create staff-only whisper posts

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, a flaw in how replies to whisper posts are handled allows authenticated users outside the groups configured in...

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-2026-44783 Discourse: Replying to a whisper lets non-whisperers create staff-only whisper posts

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, a flaw in how replies to whisper posts are handled allows authenticated users outside the groups configured in...

CVE-2026-44782 Discourse: GroupPostSerializer leaks hidden full names through reaction post association

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, GroupPostSerializer declared includeuserlongname? as the predicate for its :name attribute, but AMS looks for includename?...

EUVD-2026-36585

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, GroupPostSerializer declared includeuserlongname? as the predicate for its :name attribute, but AMS looks for includename?...

CVE-2026-44782 Discourse: GroupPostSerializer leaks hidden full names through reaction post association

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, GroupPostSerializer declared includeuserlongname? as the predicate for its :name attribute, but AMS looks for includename?...

CVE-2026-44780 Discourse: Category queue reviewers can read raw incoming emails from queued posts

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, ReviewableQueuedPostSerializer unconditionally included payload"rawemail" for posts that arrived via incoming email...

CVE-2026-44780

Summary of CVE-2026-44780 (Discourse) : The flaw arises in the ReviewableQueuedPostSerializer where, for posts arriving via incoming email, payload["raw_email"] was unconditionally included. This allowed category moderation group members in the review queue to access the full inbound email conten...

CVE-2026-44780 Discourse: Category queue reviewers can read raw incoming emails from queued posts

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, ReviewableQueuedPostSerializer unconditionally included payload"rawemail" for posts that arrived via incoming email...

CVE-2026-44779

CVE-2026-44779 affects Discourse. From versions 2026.1.0-latest up to before 2026.1.4, 2026.3.0-latest up to before 2026.3.1, and 2026.4.0-latest up to before 2026.4.1, bot debug endpoints disclose whisper translation audit logs. The issue has been patched in 2026.1.4, 2026.3.1, 2026.4.1, and 202...

CVE-2026-44779 Discourse: Bot debug endpoints disclose whisper translation audit logs

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, bot debug endpoints disclose whisper translation audit logs. This issue has been patched in versions 2026.1.4, 2026.3.1,...

CVE-2026-44779 Discourse: Bot debug endpoints disclose whisper translation audit logs

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, bot debug endpoints disclose whisper translation audit logs. This issue has been patched in versions 2026.1.4, 2026.3.1,...