CVE-2023-5969

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

Published Nov 6, 2023 CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Solution

Update Mattermost Server to versions 7.8.12, 8.0.4, 8.1.3, 9.0.1 or higher.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-3048 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.
Github GHSA Github GHSA GHSA-w496-f5qq-m58j Mattermost vulnerable to excessive memory consumption
References
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
Mattermost
Published
Updated
Sep 17, 2024, 1:07 PM
Reserved
Nov 6, 2023, 3:45 PM
Status
Modified
Published
Nov 6, 2023, 4:15 PM
Modified
Jun 17, 2026, 6:49 AM