CVE-2026-44785

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

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...

PT-2026-48982

Name of the Vulnerable Software and Affected Versions Discourse versions 2026.1.0 through 2026.1.3 Discourse versions 2026.3.0 Discourse versions 2026.4.0 Description The AI explain helper fails to verify the can see? permission on the reply to post of a post being explained. This allows an...