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Denial of Service via HTTP/2 single packet attack on login endpoint
CVE-2026-26233
Première détection SecPulse
Description d'origine La description telle que publiée par la source (souvent en anglais).
Mattermost versions 11.4.x <= 11.4.0, 11.3.x <= 11.3.1, 11.2.x <= 11.2.3, 10.11.x <= 10.11.11 fail to rate limit login requests which allows unauthenticated remote attackers to cause denial of service (server crash and restart) via HTTP/2 single packet attack with 100+ parallel login requests.. Mattermost Advisory ID: MMSA-2025-00566
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Références
- advisory github.com
- advisory mattermost.com
- advisory nvd.nist.gov