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CVE-2026-6673

🗓️ 22 Jun 2026 14:17:51Reported by [email protected]Type 
nvd
 nvd
🔗 web.nvd.nist.gov👁 15 Views

Mattermost fails to authenticate Atlassian Connect callbacks, enabling remote attackers to inject a rogue sharedSecret and disrupt Jira integration.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-6673
22 Jun 202613:38
attackerkb
circl
Circl
CVE-2026-6673
22 Jun 202616:23
circl
cve
CVE
CVE-2026-6673
22 Jun 202613:38
cve
cvelist
Cvelist
CVE-2026-6673 Mattermost Jira plugin had unauthenticated {{/ac/installed}} lifecycle callback during pending Jira Cloud install
22 Jun 202613:38
cvelist
euvd
EUVD
EUVD-2026-38249
22 Jun 202613:38
euvd
ptsecurity
Positive Technologies
PT-2026-51316
22 Jun 202600:00
ptsecurity
snyk
Snyk
Missing Authentication for Critical Function
22 Jun 202615:22
snyk
snyk
Snyk
Missing Authentication for Critical Function
22 Jun 202615:22
snyk
snyk
Snyk
Missing Authentication for Critical Function
22 Jun 202615:22
snyk
snyk
Snyk
Missing Authentication for Critical Function
22 Jun 202615:22
snyk
Rows per page
NVD
Node
OR
mattermostmattermost_serverRange10.11.010.11.18
mattermostmattermost_serverRange11.5.011.5.6
mattermostmattermost_serverRange11.6.011.6.3
mattermostmattermost_serverRange11.7.011.7.1

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