Nixpkgs security tracker

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Permalink CVE-2026-0998

4.3 MEDIUM

CVSS version: 3.1
Attack vector (AV): NETWORK
Attack complexity (AC): LOW
Privileges required (PR): LOW
User interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality impact (C): NONE
Integrity impact (I): LOW
Availability impact (A): NONE

created 2 months ago

Mattermost Zoom Plugin allows unauthorized meeting creation and post modification via insufficient API access controls

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions <=1.11.0 fail to validate user identity and post ownership in the {{/api/v1/askPMI}} endpoint which allows unauthorized users to start Zoom meetings as any user and overwrite arbitrary posts via direct API calls with manipulated user IDs and post data.. Mattermost Advisory ID: MMSA-2025-00534

References

MMSA-2025-00534 vendor-advisory

Affected products

Mattermost

=<11.2.1
==11.3.0
=<11.1.2
==11.1.3
==11.2.2
==10.11.10
=<10.11.9

Matching in nixpkgs

pkgs.mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle

nixos-unstable 10.11.10
- nixpkgs-unstable 10.11.10
- nixos-unstable-small 10.11.10
nixos-25.11 10.11.10
- nixos-25.11-small 10.11.10
- nixpkgs-25.11-darwin 10.11.10