Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to sanitize sensitive data in WebSocket messages which allows authenticated users to exfiltrate password hashes and MFA secrets via profile nickname updates or email verification events. Mattermost Advisory ID: MMSA-2025-00560
Metrics
Affected Vendors & Products
References
History
Wed, 18 Feb 2026 21:45:00 +0000
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Mattermost mattermost Server
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| Weaknesses | NVD-CWE-noinfo | |
| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* | |
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Mattermost mattermost Server
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Tue, 17 Feb 2026 17:15:00 +0000
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ssvc
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Tue, 17 Feb 2026 09:00:00 +0000
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Mattermost
Mattermost mattermost |
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Mattermost
Mattermost mattermost |
Mon, 16 Feb 2026 12:15:00 +0000
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| Description | Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to sanitize sensitive data in WebSocket messages which allows authenticated users to exfiltrate password hashes and MFA secrets via profile nickname updates or email verification events. Mattermost Advisory ID: MMSA-2025-00560 | |
| Title | User profile update exposes password hash and MFA secrets | |
| Weaknesses | CWE-200 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-02-17T17:06:14.279Z
Reserved: 2025-12-01T11:24:06.479Z
Link: CVE-2025-13821
Updated: 2026-02-17T16:42:15.925Z
Status : Analyzed
Published: 2026-02-16T12:16:21.423
Modified: 2026-02-18T21:44:27.573
Link: CVE-2025-13821
No data.