CVE-2024-39830

CVSS 3.1 Score 8.1 of 10 (high)

Details

Published Jul 3, 2024
Updated: Jul 5, 2024
CWE ID 287
CWE ID 203

Summary

CVE-2024-39830 is a vulnerability that affects Mattermost versions 9.8.x <= 9.8.0, 9.7.x <= 9.7.4, 9.6.x <= 9.6.2, and 9.5.x <= 9.5.5 when shared channels are enabled. The vulnerability allows an attacker to retrieve the remote cluster token through a timing attack during token comparison, as the affected versions fail to use constant time comparison for remote cluster tokens. This vulnerability poses a high risk to organizations as it can lead to unauthorized access and compromise of sensitive information stored in Mattermost instances that have shared channels enabled. To remediate this vulnerability, affected organizations should update their Mattermost installations to versions that are not affected by this issue and ensure that shared channels are disabled if they are not necessary for their operations.

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