Unrated severityNVD Advisory· Published Oct 13, 2025· Updated Oct 14, 2025

Mattermost Desktop App crashes when clicking on malformed external URL

CVE-2025-58084

Description

Mattermost Desktop App versions <= 5.13.0 fail to validate URLs external to the configured Mattermost servers, allowing an attacker on a server the user has configured to crash the user's application by sending the user a malformed URL.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Mattermost/Desktopllm-fuzzy
Range: <=5.13.0
Mattermost/Mattermostv5
Range: 0

Patches

Vulnerability mechanics

References

mattermost.com/security-updatesmitre

News mentions

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