CVE-2024-39836

Summary

Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.

Affected Software

VendorProductVersion RangeStatus
MattermostMattermost9.9.0 <= 9.9.1affected
MattermostMattermost9.5.0 <= 9.5.7affected
MattermostMattermost9.10.0affected
MattermostMattermost9.8.0 <= 9.8.2affected
MattermostMattermost9.11.0unaffected
MattermostMattermost9.9.2unaffected
MattermostMattermost9.5.8unaffected
MattermostMattermost9.10.1unaffected
MattermostMattermost9.8.3unaffected

Weaknesses

  • CWE-693: CWE-693: Protection Mechanism Failure

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References