CYBERSECURITYTRACKER
Briefings

Weekly recap: Week of 24 to 30 August 2026

Review the week's tracked stories, vulnerability changes, and unverified leak-site claims for the dates shown.

173 qualifying stories tracked; change from the prior 7 days: +29 vs prior period; 11 Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) entries added; 207 leak-site claims observed by tracked feeds

Monday to Sunday, Coordinated Universal Time (UTC). Permalink label: 2026-W35.

173
Stories
+29 vs prior week
11
CISA KEV additions
+1 vs prior week
207
Leak-site claims
-33 vs prior week

The 173 stories above are counted by publisher date (first-seen date where it is missing or unusable), and only for stories that have a summary and a why-it-matters line and are not thin or editorially excluded. The daily archive counts by the day the tracker first saw each story and does not require a summary or a why-it-matters line: its 7 day pages for these 7 days list 414 stories. The two figures use different dates and rules, so they are not expected to match.

Most covered

Most active ransomware groups (leak-site claims, unverified)

Most active ransomware groups by leak-site claims in the week of 24 to 30 August 2026, unverified
Qilin42 claims+10 vs prior week
The Gentlemen21 claims-7 vs prior week
KryBit13 claims+8 vs prior week
Akira12 claims+7 vs prior week
Silentransomgroup10 claims+7 vs prior week
Chaos6 claims+6 vs prior week
Dark Project6 claims+6 vs prior week
LockBit6 claims+4 vs prior week
Direwolf5 claims-16 vs prior week
INC Ransom5 claims-6 vs prior week

Leak-site claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a failover, credited and linked as its terms require (Source: Ransomware.live).

Takedowns and arrests

6 more qualifying actions on the full feed.

All takedowns and arrests

CISA KEV additions (Showing 10 of 11)

CISA KEV additions in the week of 24 to 30 August 2026
CVEVendor and productFederal fix deadline
CVE-2019-1068Microsoft SQL Server
CVE-2026-21962Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-in
CVE-2026-60004Gitea Gitea
CVE-2023-49105ownCloud ownCloud
CVE-2021-23758Ajax.NET Professional Ajax.NET Professional
CVE-2026-8452Citrix NetScaler ADC and NetScaler Gateway
CVE-2022-0995Linux Kernel
CVE-2015-3246Red Hat Libuser
CVE-2015-5287Red Hat Automatic Bug Reporting Tool
CVE-2026-53362Linux Kernel

Vulnerabilities on the move, to (the 7 days before this recap was generated)

Vulnerabilities on the move between 2026-08-24 and 2026-08-31
CVEVendor and productWhat changed
CVE-2019-1068Microsoft SQL ServerAdded to CISA KEV 2026-08-26Added to ENISA EUVD 2026-08-26
CVE-2026-48710encode starletteAdded to VulnCheck KEV 2026-08-26
CVE-2026-73570Synacor Zimbra Collaboration Suite (ZCS)EPSS up 19 points in about a week
CVE-2026-21962Oracle HTTP Server and Oracle Weblogic Server Proxy Plug-inAdded to CISA KEV 2026-08-24Added to ENISA EUVD 2026-08-24
CVE-2026-18577N-able N-centralEPSS up 48 points in about a week

Ransomware leak-site claims (20 of 207 shown, unverified)

Ransomware claim data is unverified: RansomLook (CC BY 4.0), with ransomware.live as a failover, credited and linked as its terms require (Source: Ransomware.live).

All leak-site claims and confirmed breaches

Glossary