CVE-2023-5969: Mattermost vulnerable to excessive memory consumption

November 6, 2023 (updated November 8, 2023)

Mattermost fails to properly sanitize the request to /api/v4/redirect_location allowing an attacker, sending a specially crafted request to /api/v4/redirect_location, to fill up the memory due to caching large items.

References

github.com/advisories/GHSA-w496-f5qq-m58j
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2023-5969

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