Beveiligingsadvies

CVE-2026-2455

CVE-kwetsbaarheidsdetails - eXtreme Datacenter Security Operations

Gepubliceerd 2026-03-16 14:53:31

Laatst bijgewerkt 2026-03-16 18:38:07

Toegewezen door Mattermost

CVSS-score 4.3

Status PUBLISHED

Beschrijving

Mattermost versions 11.3.x <= 11.3.0, 11.2.x <= 11.2.2, 10.11.x <= 10.11.10 fail to canonicalize IPv4-mapped IPv6 addresses before reserved IP validation which allows an attacker to perform SSRF attacks against internal services via IPv4-mapped IPv6 literals (e.g., [::ffff:127.0.0.1]).. Mattermost Advisory ID: MMSA-2026-00585

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