CVE-2026-2476

MS Teams plugin sensitive config values not properly masked in support packets

State
Published
Severity
7.6 High
Published
Mar 16, 2026
Updated
Mar 16, 2026
Reserved
Feb 13, 2026

Read the record on cve.org

Description

Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606

Scores

CVSSScoreVectorSource
3.17.6 HighCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:NMattermost

Weaknesses

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

ProductVersions
MattermostMattermost
  • 2.0.3 and earlierAffected
  • 2.3.1.0Not affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.