Vulnerability · Published May 30, 2025 · Assigned by Mattermost
CVE-2025-2571Google OAuth Authentication Bypass for Converted Bot Accounts
Medium 4.2
In plain English
A medium-severity security flaw in Mattermost from Mattermost. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.2%top 88.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/mattermost/mattermost-server | 10.5.4+incompatible, 10.6.3+incompatible, 10.7.1+incompatible, 9.11.13+incompatible | GO-2025-3729 |
| Go | github.com/mattermost/mattermost-server/v5 | no fix listed | GO-2025-3729 |
| Go | github.com/mattermost/mattermost-server/v6 | no fix listed | GO-2025-3729 |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250414095146-04676582cdd2 | GHSA-8cgx-9ccj-3gwr |
| Go | github.com/mattermost/mattermost/server/v8 | 10.6.3 | GHSA-8cgx-9ccj-3gwr |
| Go | github.com/mattermost/mattermost/server/v8 | 10.7.1 | GHSA-8cgx-9ccj-3gwr |
| Go | github.com/mattermost/mattermost/server/v8 | 8.0.0-20250414095146-04676582cdd2 | GO-2025-3729 |
| Go | github.com/mattermost/mattermost/server/v8 | 10.5.4 | GHSA-8cgx-9ccj-3gwr |
| Go | github.com/mattermost/mattermost/server/v8 | 9.11.13 | GHSA-8cgx-9ccj-3gwr |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost | 10.7.010.6.0 – through 10.6.210.5.0 – through 10.5.39.11.0 – through 9.11.12 |
Weakness: CWE-303 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N