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CVE-2023-5196

Good to know:

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Date: September 29, 2023

Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users.

Language: Go

Severity Score

Related Resources (3)

https://mattermost.com/security-updates
https://nvd.nist.gov/vuln/detail/CVE-2023-5196
https://www.mend.io/vulnerability-database/CVE-2023-5196

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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