CVE-2023-5876: Regex DoS from a malicious server enrolled in Desktop
First published: Thu Nov 02 2023(Updated: )
Mattermost fails to properly validate a RegExp built off the server URL path, allowing an attacker in control of an enrolled server to mount a Denial Of Service.
Credit: responsibledisclosure@mattermost.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| <5.5.1 |
Remedy
Update Mattermost Desktop to versions v5.5.1 or higher.
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Reference Links
Frequently Asked Questions
What is CVE-2023-5876?
CVE-2023-5876 is a vulnerability in Mattermost Desktop that allows an attacker in control of an enrolled server to mount a Denial of Service attack.
How does CVE-2023-5876 impact Mattermost Desktop?
CVE-2023-5876 impacts Mattermost Desktop by allowing an attacker to launch a Denial of Service attack.
What is the severity of CVE-2023-5876?
The severity of CVE-2023-5876 is Medium.
Which version of Mattermost Desktop is affected by CVE-2023-5876?
Mattermost Desktop version up to and excluding 5.5.1 is affected by CVE-2023-5876.
How can I fix CVE-2023-5876?
To fix CVE-2023-5876, update your Mattermost Desktop to a version higher than 5.5.1.
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