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Mattermost-inc

33 CVEs tracked since 2025. Since Jun 2025, none of them reached CISA KEV.

Mattermost-inc CVEs per month

Jun 2025 to May 2026. Point at a month, or focus the strip and use the arrow keys.
Mattermost-inc CVEs per month, with the share now in CISA KEV
MonthCVEsIn CISA KEV
2025-0650
2025-07null or fewer
2025-08110
2025-09null or fewer
2025-10null or fewer
2025-11100
2025-12null or fewer
2026-01null or fewer
2026-02null or fewer
2026-03null or fewer
2026-04null or fewer
2026-0570

Products

The products that kept showing up in Mattermost-inc's monthly top three, with their CVEs summed over those months.

  1. Mattermost213 months
  2. Mattermost Confluence111 month
  3. Mattermost Mobile Apps11 month

Latest CVEs

The 15 most recently published vulnerabilities affecting Mattermost-inc.

  1. CVE-2026-4915Server panic via outgoing webhook responses6.5
  2. CVE-2026-4635Persistent notification timing attack causing server denial of service6.5
  3. CVE-2026-3473Improper file ownership validation in the Boards API allows unauthorised file access5.9
  4. CVE-2026-4646Insufficient input validation in GitHub plugin API causes denial of service4.3
  5. CVE-2026-5740Unauthenticated WebSocket binary frame causes denial of service in Mattermost Server7.5
  6. CVE-2026-5308Missing request body size limits on Zoom plugin HTTP endpoints4.9
  7. CVE-2026-5755Denial of service via crafted TIFF file upload6.5
  8. CVE-2026-3590Race Condition in Guest Magic Link Authentication Allows Token Reuse6.5
  9. CVE-2026-28741CSRF Protection Bypass Allows Updating a User's Authentication Method6.8
  10. CVE-2026-27769Connected Workspaces: Malicious remote server can manipulate arbitrary user's status2.7
  11. CVE-2026-1629Permalink Preview Information Disclosure After Permission Revocation4.3
  12. CVE-2026-26230Team Admin Privilege Escalation to Demote Members to Guest3.8
  13. CVE-2026-2454DoS in Calls plugin via malformed msgpack in websocket request.5.8
  14. CVE-2026-26304Permission Bypass in Playbook Run Creation4.3
  15. CVE-2026-24692Guest users can bypass read permissions via search API4.3

The record

Peak rank
#76 in Aug 2025
Busiest month shown
Aug 2025, 11 CVEs
Months with a KEV entry
0 since Jun 2025
Monthly snapshots
4 since 2025
Mattermost-inc's full record, month by month

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