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Untriaged
Permalink CVE-2026-3116
4.9 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): HIGH
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): NONE
  • Availability impact (A): HIGH
created 2 weeks, 5 days ago
Improper Input Validation in Zoom Plugin Webhook Handler

Mattermost Plugins versions <=11.4 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to validate incoming request size which allows an authenticated attacker to cause service disruption via the webhook endpoint. Mattermost Advisory ID: MMSA-2026-00589

References

Affected products

Mattermost
  • =<11.3.2
  • =<11.0.4
  • =<10.11.11
  • ==11.5.0
  • =<11.1.3
  • ==11.4.1
  • ==10.11.12
  • ==11.2.4
  • ==11.3.2

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