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Untriaged
Permalink CVE-2026-75587
3.6 LOW
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Local (L)
  • Attack Complexity (AC): Low (L)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): Required (R)
  • Scope (S): Changed (C)
  • Confidentiality (C): Low (L)
  • Integrity (I): None (N)
  • Availability (A): None (N)
  • Modified Attack Vector (MAV): Local (L)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): Required (R)
  • Modified Confidentiality (MC): Low (L)
  • Modified Scope (MS): Changed (C)
  • Modified Integrity (MI): None (N)
  • Modified Availability (MA): None (N)
created 1 month ago Activity log
  • Created suggestion
Plaintext pre-auth secret exposure via Desktop App diagnostics report

Mattermost Desktop App versions <=6.2 6.2.2.0 fail to redact the pre-auth secret when generating a diagnostics report, which allows a local attacker with access to a user's diagnostics report or log files to obtain the plaintext pre-auth secret configured for a connected server via inspecting the Server Connectivity (Step-3) diagnostics output. Mattermost Advisory ID: MMSA-2026-00716

References

Affected products

Mattermost
  • =<6.2.2
  • ==6.2.3.0
  • ==6.3.0

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Package maintainers