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GHSA-xvq6-h898-wcj8

Mattermost denial of service vulnerability

Source: GitHub Advisory Database (reviewed) Moderate CVE-2023-5967

Packages

EcosystemPackageAffectedFixed in
Go github.com/mattermost/mattermost-server/v6 < 7.8.12 7.8.12
Go github.com/mattermost/mattermost/server/v8 >= 8.0.0, < 8.0.4 8.0.4
Go github.com/mattermost/mattermost/server/v8 >= 8.1.0, < 8.1.3 8.1.3
Go github.com/mattermost/mattermost/server/v8 >= 9.0.0, < 9.0.1 9.0.1

Details

As written in the advisory (Markdown source, shown as plain text).

Mattermost fails to properly validate requests to the Calls plugin, allowing an attacker sending a request without a User Agent header to cause a panic and crash the Calls plugin

References

External links from the advisory. They lead to third-party sites.