CVE-2026-6673 - CERT CVE
ID CVE-2026-6673
Sažetak 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
Reference
CVSS
Base: 6.4
Impact: 5.2
Exploitability:1.2
Pristup
VektorSloženostAutentikacija
NETWORK HIGH LOW
Impact
PovjerljivostCjelovitostDostupnost
NONE HIGH HIGH
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H
Zadnje važnije ažuriranje 23-06-2026 - 20:49
Objavljeno 22-06-2026 - 14:17