CVE-2026-0998
Medium · 4.3CVSS
4.3
EPSS
0.2%
Published
Feb 16, 2026
CISA due date
—
The record
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
Affected packages
| Ecosystem | Package | Introduced | Fixed |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-plugin-zoom | 0 | 1.12.0 |
| openSUSE:Leap 15.6 | govulncheck-vulndb | 0 | 0.0.20260226T182644-150000.1.149.1 |
Related vulnerabilities
- GO-2026-4525 Mattermost Plugin Zoom fail to validate user identity and post ownership in the… Same vulnerability
- GO-2026-4519 Mattermost Plugin Zoom allows any logged-in user to change Zoom meeting restrictions for… Also affects github.com/mattermost/mattermost-plugin-zoom
- CVE-2026-0997 Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost… Also affects github.com/mattermost/mattermost-plugin-zoom
- CVE-2026-33990 Docker Model Runner (DMR) is software used to manage, run, and deploy AI models using… Also affects govulncheck-vulndb
- CVE-2026-34204 MinIO is a high-performance object storage system. Also affects govulncheck-vulndb
- CVE-2026-34041 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34042 act is a project which allows for local running of github actions. Also affects govulncheck-vulndb
- CVE-2026-34040 Moby is an open source container framework. Also affects govulncheck-vulndb