CVE-2023-5967: Mattermost denial of service vulnerability

November 6, 2023 (updated November 8, 2023)

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

github.com/advisories/GHSA-xvq6-h898-wcj8
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-5967

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