CVE-2026-88817

Curiosity Workspace is affected by a privilege escalation vulnerability in its legacy access group creation endpoint . An authenticated, non-guest user could enroll themselves as an administrator and member of an existing access group without an invitation or approval. However, the flaw did not g...

CVE-2025-27715 Auto-Enrollment of Team Admins into Private Channels without explicit consent

Mattermost versions 9.11.x = 9.11.8 fail to prompt for explicit approval before adding a team admin to a private channel, which team admins to joining private channels via crafted permalink links without explicit consent from them...