CVE-2025-12419
- Source
- https://cve.org/CVERecord?id=CVE-2025-12419
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-12419.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-12419
- Aliases
- Published
- 2025-11-27T16:15:46.957Z
- Modified
- 2026-02-28T04:45:29.900944Z
- Severity
-
- 9.9 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
Mattermost versions 10.12.x <= 10.12.1, 10.11.x <= 10.11.4, 10.5.x <= 10.5.12, 11.0.x <= 11.0.3 fail to properly validate OAuth state tokens during OpenID Connect authentication which allows an authenticated attacker with team creation privileges to take over a user account via manipulation of authentication data during the OAuth completion flow. This requires email verification to be disabled (default: disabled), OAuth/OpenID Connect to be enabled, and the attacker to control two users in the SSO system with one of them never having logged into Mattermost.
- References
Affected packages
Git / github.com/mattermost/mattermost-server
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mattermost/mattermost-server
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedIntroducedFixedIntroducedFixedIntroducedFixed
Affected versions
@mattermost/client@10.*
@mattermost/client@10.11.0
@mattermost/client@10.12.0
@mattermost/client@10.5.0
@mattermost/types@10.*
@mattermost/types@10.11.0
@mattermost/types@10.12.0
@mattermost/types@10.5.0
mattermost-redux@10.*
mattermost-redux@10.11.0
mattermost-redux@10.12.0
v10.*
v10.11.0
v10.11.0-rc3
v10.11.1
v10.11.1-rc1
v10.11.2
v10.11.2-rc1
v10.11.2-rc2
v10.11.3
v10.11.4
v10.11.4-rc1
v10.11.4-rc2
v10.11.4-rc3
v10.12.0
v10.12.0-rc1
v10.12.0-rc2
v10.12.0-rc3
v10.12.1
v10.12.1-rc1
v10.5.0
v10.5.0-rc6
v10.5.1
v10.5.1-rc1
v10.5.1-rc2
v10.5.10
v10.5.10-rc1
v10.5.10-rc2
v10.5.11
v10.5.11-rc1
v10.5.12
v10.5.12-rc1
v10.5.2
v10.5.3
v10.5.3-rc1
v10.5.4
v10.5.4-rc1
v10.5.4-rc2
v10.5.5
v10.5.5-rc1
v10.5.6
v10.5.6-rc1
v10.5.7
v10.5.8
v10.5.8-rc1
v10.5.9
v10.5.9-rc1
v10.5.9-rc2
v10.5.9-rc3
v10.5.9-rc4