6.5

CVE-2026-4635

Persistent notification timing attack causing server denial of service

Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to archive the channel before removing persistent notifications which allows authenticated user to crash the server via timing the creation of persistent notification message between the server deleting existing persistent notifications and archiving the channel.. Mattermost Advisory ID: MMSA-2026-00637
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerMattermost
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Produkt Mattermost
Default Statusunaffected
Version <= 11.6.0
Version 11.6.0
Status affected
Version <= 11.5.3
Version 11.5.0
Status affected
Version <= 11.4.4
Version 11.4.0
Status affected
Version <= 10.11.14
Version 10.11.0
Status affected
Version 11.7.0
Status unaffected
Version 11.6.1
Status unaffected
Version 11.5.4
Status unaffected
Version 11.4.5
Status unaffected
Version 10.11.15
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.068
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
9302f53e-dde5-4bf3-b2f2-a83f91ac0eee 6.5 0 0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
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