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Security News — 3 October 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 5 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 3 October 2026 · 10 items.

Top 5 to watch today

  1. CVE-2026-102489 — CRITICAL (CVSS 9.4) Critical · exploited CVEDatabase - Critical CVEs
  2. CVE-2026-102490 — CRITICAL (CVSS 9.4) Critical · exploited CVEDatabase - Critical CVEs
  3. Warlock Exploits SharePoint Flaws to Disable Security Tools and Deploy Ransomware The Hacker News
  4. CVE-2026-96451 — HIGH (CVSS 8.8) High CVEDatabase - Recent CVEs
  5. ShinyHunters hacker reportedly detained in Jordan, aiding FBI BleepingComputer

Urgent Vulnerabilities 3

Actively exploited, critical, or high-severity flaws — patch or mitigate first.

CVEDatabase - Critical CVEs03 Oct

CVE-2026-102489 — CRITICAL (CVSS 9.4)

CriticalCVSS 9.4KEV · exploited
Exploited
Yes — CISA KEV
Product
Zammad GmbH Zammad
Impact
Remote code execution
Action
Patch per vendor / CISA KEV

CVSS 9.4 CRITICAL · Vendor: zammad Zammad versions 6.3.0 to 6.5.4 are vulnerable a session hijack vulnerability that leads to remote code execution as the zammad user. The vulnerability is also present in version 7.0.0 to version 7.1.3, bu…

Read at source →
CVEDatabase - Critical CVEs03 Oct

CVE-2026-102490 — CRITICAL (CVSS 9.4)

CriticalCVSS 9.4KEV · exploited
Exploited
Yes — CISA KEV
Product
Zammad GmbH Zammad
Impact
Privilege escalation
Action
Patch per vendor / CISA KEV

CVSS 9.4 CRITICAL · Vendor: zammad All versions of Zammad including the latest alpha enable the local zammad user to escalate privileges to root.

Read at source →
CVEDatabase - Recent CVEs03 Oct

CVE-2026-96451 — HIGH (CVSS 8.8)

HighCVSS 8.8
Impact
Privilege escalation
Action
Patch when a fix is available; monitor exposure

CVSS 8.8 HIGH Authorization Bypass Through User-Controlled Key vulnerability in Ultimate Member Ultimate Member ultimate-member allows Privilege Escalation.This issue affects Ultimate Member: from n/a through 2.13.1.

Read at source →

Threat Activity 4

Malware, campaigns and adversary tradecraft.

Breaches & Incidents 2

Ransomware, data breaches and supply-chain events.

Research & Detection 1

Detection engineering, tooling and defensive analysis.

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