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CVE-2026-6673

MEDIUM · CVSS 6.4 EPSS %0.18

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-06-22T14:17:51.260 · Çekilme zamanı: 2026-06-30T18:29:10.948630+00:00

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CVE
CVE-2026-6673
Severity
MEDIUM
CVSS
6.4
EPSS
%0.18

Orijinal NVD Açıklaması

Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the pending-install window.. Mattermost Advisory ID: MMSA-2026-00654