Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
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History
Wed, 14 Jan 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost Server Mattermost ms Teams |
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| CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:ms_teams:*:*:*:*:*:*:*:* |
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| Vendors & Products |
Mattermost
Mattermost mattermost Server Mattermost ms Teams |
Wed, 16 Apr 2025 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Wed, 16 Apr 2025 09:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison. | |
| Title | Webhook Secret Exposure via Timing attack in MSteams plugin | |
| Weaknesses | CWE-208 | |
| References |
| |
| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2025-04-16T14:32:45.176Z
Reserved: 2025-04-08T11:14:14.689Z
Link: CVE-2025-27936
Updated: 2025-04-16T14:22:49.604Z
Status : Analyzed
Published: 2025-04-16T10:15:14.797
Modified: 2026-01-14T14:29:28.477
Link: CVE-2025-27936
No data.
OpenCVE Enrichment
No data.