CVE-2025-55035

Mattermost Desktop DoS when user has basic authentication server configured

CVSS 6.1 MEDIUMEPSS 0.3%CWE-754

Vexday Risk Score

13Baixo

Decisão SSVC (CISA)

Track

Sem sinal de exploração → monitorar

CVSS 6.1EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Ciclo de vida

16 out 2025Publicada no NVD

Recomendação: Monitorar — sem sinal de exploração no momento.

Mattermost Desktop App versions <=5.13.0 fail to manage modals in the Mattermost Desktop App that stops a user with a server that uses basic authentication from accessing their server which allows an attacker that provides a malicious server to the user to deny use of the Desktop App via having the user configure the malicious server and forcing a modal popup that cannot be closed.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:N/A:H

Produtos afetados

Mattermost · Mattermost

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Referências

https://mattermost.com/security-updates