PULSE
LIVE23signals / 24h
FEED
ransomaurora reclama a US Installation Group, Inc. · US · Manufacturingransomincransom reclama a pushidrosal.id · ID · Otherransomincransom reclama a lccgroup.com · PH · Professional Servicesransomincransom reclama a https://geleximco.vn/ · VN · Manufacturingransomincransom reclama a clintonhealthaccess.org · US · Healthcareransomincransom reclama a Oleoductos del Valle · AR · Energy & Utilitiesransomsafepay reclama a pradotuylaw.com · US · Professional Servicesransomsafepay reclama a naskdoorinc.com · US · Manufacturingransomsafepay reclama a new-point.it · IT · Technologyransomsafepay reclama a simonrack.com · ES · Manufacturingransomsafepay reclama a hanan-hov.co.il · IL · Otherransomanubis reclama a BLACKBURN'S · US · Healthcareransomanubis reclama a Cameron Regional Medical Center · US · Healthcareransomsafepay reclama a azn.co.jp · JP · Retail & E-Commerceransomaurora reclama a US Installation Group, Inc. · US · Manufacturingransomincransom reclama a pushidrosal.id · ID · Otherransomincransom reclama a lccgroup.com · PH · Professional Servicesransomincransom reclama a https://geleximco.vn/ · VN · Manufacturingransomincransom reclama a clintonhealthaccess.org · US · Healthcareransomincransom reclama a Oleoductos del Valle · AR · Energy & Utilitiesransomsafepay reclama a pradotuylaw.com · US · Professional Servicesransomsafepay reclama a naskdoorinc.com · US · Manufacturingransomsafepay reclama a new-point.it · IT · Technologyransomsafepay reclama a simonrack.com · ES · Manufacturingransomsafepay reclama a hanan-hov.co.il · IL · Otherransomanubis reclama a BLACKBURN'S · US · Healthcareransomanubis reclama a Cameron Regional Medical Center · US · Healthcareransomsafepay reclama a azn.co.jp · JP · Retail & E-Commerce
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CVE WatchJul 23, 2026

CVE-2026-4635

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 pe

CVSS

6.5

Medium

EPSS

0.2%

p7

KEV

Exploit Today

2

0-100

Published: May 22, 2026 · Last modified: Jul 23, 2026 · CWE-362

EPSS · 30d
0.2%EPSS · 30 days0.2%
2026-07-062026-08-02
Technical description

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

Official references
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