CVE-2023-5969

Denial of Service via Link Preview in /api/v4/redirect_location

CVSS 5.3 MEDIUMEPSS 0.5%CWE-400

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 5.3EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

06 Nov 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

Mattermost · Mattermost

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References

https://mattermost.com/security-updates