CVE-2026-6673
6.4 MoyenneDescription
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
Produits concernés
Scores CVSS
| Version | Score | Source | Vecteur |
|---|---|---|---|
| 3.1 | 6.4 Moyenne | responsibledisclosure@mattermost.com | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H |
Faiblesses (CWE)
Références
- https://mattermost.com/security-updates Vendor Advisory