Riskcovery

CVE-2026-9820

Mattermost schemes teams endpoint exposes private team invite IDs

State
Published
Severity
3.8 Low
Published
Jul 13, 2026
Updated
Jul 13, 2026
Reserved
May 28, 2026

Read the record on cve.org

Description

Mattermost versions 11.7.x <= 11.7.2, 10.11.x <= 10.11.19 fail to sanitize team objects returned by the scheme teams endpoint, which allows a user with the User Manager role to obtain invite links for private teams and use them to join or share access to those teams via the scheme teams API endpoint.. Mattermost Advisory ID: MMSA-2026-00671

Scores

CVSSScoreVectorSource
3.13.8 LowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:NMattermost

Weaknesses

Affected Products

ProductVersions
MattermostMattermost
  • 11.7.0 through 11.7.2Affected
  • 10.11.0 through 10.11.19Affected
  • 11.8.0Not affected
  • 11.7.3Not affected
  • 10.11.20Not affected

References

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