CVE-2025-2571

Google OAuth Authentication Bypass for Converted Bot Accounts

State: Published
Severity: 4.2 Medium
Published: May 30, 2025
Updated: May 30, 2025
Reserved: Mar 20, 2025

Description

Mattermost versions 10.7.x <= 10.7.0, 10.6.x <= 10.6.2, 10.5.x <= 10.5.3, 9.11.x <= 9.11.12 fail to clear Google OAuth credentials when converting user accounts to bot accounts, allowing attackers to gain unauthorized access to bot accounts via the Google OAuth signup flow.

Scores

CVSS	Score	Vector	Source
3.1	4.2 Medium	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N	Mattermost

Weaknesses

CWE-303 Incorrect Implementation of Authentication Algorithm

Affected Products

Product	Versions
MattermostMattermost	10.7.0Affected 10.6.0 through 10.6.2Affected 10.5.0 through 10.5.3Affected 9.11.0 through 9.11.12Affected 10.8.0Not affected 10.7.1Not affected 10.6.3Not affected 10.5.4Not affected 9.11.13Not affected

References

https://mattermost.com/security-updates

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