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CVE-2026-6342

🗓️ 05 Jun 2026 19:32:15Reported by redhat.comType 
redhatcve
 redhatcve
🔗 access.redhat.com👁 3 Views

Mattermost plugins fail to validate namespaces, enabling subscriptions to non whitelisted groups via prefixes.

Related
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-6342
18 May 202607:00
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Mattermost Plugins 安全漏洞
18 May 202600:00
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CVE-2026-6342
18 May 202607:00
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Cvelist
CVE-2026-6342 Group prefix matching bypass for subscriptions
18 May 202607:00
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EUVD
EUVD-2026-30745
18 May 202607:00
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CVE-2026-6342
18 May 202608:16
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Positive Technologies
PT-2026-41647
18 May 202600:00
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Snyk
Incorrect Authorization
18 May 202609:45
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Vulnrichment
CVE-2026-6342 Group prefix matching bypass for subscriptions
18 May 202607:00
vulnrichment

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05 Jun 2026 19:32Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.14.3
EPSS0.00031
SSVC
3