CVE-2026-0998
NixOS vulnerability analysis and mitigation

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


SourceNVD

Related NixOS vulnerabilities:

CVE ID

Severity

Score

Technologies

Component name

CISA KEV exploit

Has fix

Published date

CVE-2026-21010HIGH7.8
  • NixOSNixOS
  • android
NoNoApr 13, 2026
CVE-2026-21012MEDIUM6.8
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CVE-2026-21011MEDIUM5.4
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CVE-2026-21008MEDIUM5.1
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CVE-2026-21007MEDIUM4.4
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NoNoApr 13, 2026

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