4.3
CVE-2026-25783
- EPSS 0.08%
- Veröffentlicht 16.03.2026 12:04:18
- Zuletzt bearbeitet 18.03.2026 18:11:16
- Quelle responsibledisclosure@mattermo
- CVE-Watchlists
- Unerledigt
Denial of service via malformed User-Agent header in getBrowserVersion
Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to properly validate User-Agent header tokens which allows an authenticated attacker to cause a request panic via a specially crafted User-Agent header. Mattermost Advisory ID: MMSA-2026-00586
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Mattermost ≫ Mattermost Server Version >= 10.11.0 < 10.11.11
Mattermost ≫ Mattermost Server Version >= 11.2.0 < 11.2.3
Mattermost ≫ Mattermost Server Version >= 11.3.0 < 11.3.1
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. 
Login
Login| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.08% | 0.233 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| responsibledisclosure@mattermost.com | 4.3 | 2.8 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
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CWE-1287 Improper Validation of Specified Type of Input
The product receives input that is expected to be of a certain type, but it does not validate or incorrectly validates that the input is actually of the expected type.