CVE-2026-64866

New API is a large language mode LLM gateway and artificial intelligence AI asset management system. From 0.9.1.3 until 1.0.0-rc.7, AdminResetPasskey in controller/passkey.go lacks the canManageTargetRole authorization check for DELETE /api/user/:id/resetpasskey, allowing a lower-privileged...

CVE-2026-75051

In JetBrains YouTrack before 2026.2.17917 unauthorised project transfer between organisations was possible...

CVE-2026-75049

JetBrains YouTrack (versions before 2026.1.13903 and 2026.2.17950) has an authorization flaw: an authenticated user with low privileges can use the draft creation endpoint to read restricted articles from other projects, causing high confidentiality impact (CVSS 6.5). No in-the-wlood exploitation...

CVE-2026-75049

In JetBrains YouTrack before 2026.1.13903, 2026.2.17950 an authenticated user could read restricted articles from other projects via the draft creation endpoint...

EUVD-2026-60248

In JetBrains YouTrack before 2026.1.13903, 2026.2.17950 an authenticated user could read restricted articles from other projects via the draft creation endpoint...

CVE-2026-75049

In JetBrains YouTrack before 2026.1.13903, 2026.2.17950 an authenticated user could read restricted articles from other projects via the draft creation endpoint...

CVE-2026-64859

In new-api before v1.0.0-rc.7, the User model's AccessToken field was serialized as "access_token" in JSON responses to admin-only endpoints (GET /api/user/ and user lookup). An authenticated admin could retrieve the root user's bearer token and impersonate root, bypassing role boundaries to acce...

CVE-2026-16046

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21 fail to enforce run-state validation on write operations for finished playbook runs which allows a run participant to modify status, checklists, retrospective content, ownership, and participants on completed runs via REST and GraphQL API...

CVE-2026-16047

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fail to validate that users have read access to a channel before linking a board to it, which allows an authenticated attacker to discover the membership of private channels on the same team via creating, patching, importing...

CVE-2026-15754

Mattermost versions 11.7.x = 11.7.6, 11.8.x = 11.8.3 The access control policy unassign endpoint fails to re-validate that each target channel still belongs to the requesting admin's team, which allows an authenticated team administrator to remove ABAC attribute-based access control policy...

CVE-2026-10527 Boards plugin retains Board Admin rights for users demoted to System Guest

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fails to reconcile SchemeAdmin flags with a user's current role which allows a user demoted to System Guest to retain Board Admin privileges and perform admin-only operations via the Boards REST API or UI.. Mattermost Adviso...

CVE-2026-15754 Missing per-channel team-scope check in ABAC access control policy unassign allows cross-team policy removal

Mattermost versions 11.7.x = 11.7.6, 11.8.x = 11.8.3 The access control policy unassign endpoint fails to re-validate that each target channel still belongs to the requesting admin's team, which allows an authenticated team administrator to remove ABAC attribute-based access control policy...

CVE-2026-15754 Missing per-channel team-scope check in ABAC access control policy unassign allows cross-team policy removal

Mattermost versions 11.7.x = 11.7.6, 11.8.x = 11.8.3 The access control policy unassign endpoint fails to re-validate that each target channel still belongs to the requesting admin's team, which allows an authenticated team administrator to remove ABAC attribute-based access control policy...

CVE-2026-15754

Mattermost 11.7.x (≤11.7.6) and 11.8.x (≤11.8.3) have a missing per-channel team-scope check in the ABAC policy unassign endpoint, allowing an authenticated team administrator to remove ABAC policy assignments from channels that have been moved to another team. Impact is integrity-focused (CVSS 4...

EUVD-2026-60212

Mattermost versions 11.7.x = 11.7.6, 11.8.x = 11.8.3 The access control policy unassign endpoint fails to re-validate that each target channel still belongs to the requesting admin's team, which allows an authenticated team administrator to remove ABAC attribute-based access control policy...

CVE-2026-15754

Mattermost versions 11.7.x = 11.7.6, 11.8.x = 11.8.3 The access control policy unassign endpoint fails to re-validate that each target channel still belongs to the requesting admin's team, which allows an authenticated team administrator to remove ABAC attribute-based access control policy...

CVE-2026-16045

Mattermost 11.7.x (≤11.7.6) and 10.11.x (≤10.11.21) failed to restrict OAuth deauthorization and personal access token management endpoints to direct user sessions. A malicious OAuth app holding a delegated user token could revoke the user's authorizations or tokens for unrelated integrations via...

CVE-2026-16047 Board channel linking without read channel permission validation

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fail to validate that users have read access to a channel before linking a board to it, which allows an authenticated attacker to discover the membership of private channels on the same team via creating, patching, importing...

CVE-2026-16047 Board channel linking without read channel permission validation

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fail to validate that users have read access to a channel before linking a board to it, which allows an authenticated attacker to discover the membership of private channels on the same team via creating, patching, importing...

EUVD-2026-60208

Mattermost versions 11.7.x = 11.7.6, 10.11.x = 10.11.21, 11.8.x = 11.8.3 fail to validate that users have read access to a channel before linking a board to it, which allows an authenticated attacker to discover the membership of private channels on the same team via creating, patching, importing...