CVE-2026-2455
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
Vendor
Product
CWE
Yayın Tarihi
2026-03-16 15:16:22
Güncelleme
2026-03-18 13:55:00
Source Identifier
responsibledisclosure@mattermost.com
KEV Date Added
-