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Security News — 14 September 2026

A daily, automatically-compiled digest of the cyber security stories that broke in the last 24 hours, drawn from 9 trusted feeds. Each entry is a short excerpt — follow the link to read the full article at its original publisher. Compiled 14 September 2026 · 23 items.

Top 5 to watch today

  1. Maximum Severity GitLab Flaw Puts Supply Chains at Risk exploited Dark Reading
  2. CISA Adds One Known Exploited Vulnerability to Catalog exploited CISA Current Activity
  3. CVE-2026-76441 — CRITICAL (CVSS 9.8) Critical CVEDatabase - Critical CVEs
  4. CVE-2026-20353 — CRITICAL (CVSS 9.8) Critical CVEDatabase - Critical CVEs
  5. Red Heron Exploits Gitea RCE to Compromise 13 Organizations Across Six Countries The Hacker News

Urgent Vulnerabilities 6

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

Dark Reading14 Sep

Maximum Severity GitLab Flaw Puts Supply Chains at Risk

KEV · exploited
Exploited
Yes — CISA KEV
Product
GitLab Community Edition and Enterprise Edition
Impact
Path traversal
Audience
DevOps/CI admins
Action
Patch per vendor / CISA KEV

CVE-2026-85706 is a path traversal vulnerability with a 10 out of 10 CVSS score, affecting both GitLab Community Edition and Enterprise Edition instances.

Read at source →
CISA Current Activity14 Sep

CISA Adds One Known Exploited Vulnerability to Catalog

KEV · exploited
Exploited
Yes — CISA KEV
Product
Cisco Secure Email Gateway
Impact
SQL injection
Audience
Network/firewall admins
Action
Patch per vendor / CISA KEV

CISA has added one new vulnerability to its Known Exploited Vulnerabilities (KEV) Catalog , based on evidence of active exploitation. CVE-2026-76461 Cisco Secure Email Gateway SQL Injection Vulnerability This type of vulnerability is a fre…

Read at source →
CVEDatabase - Critical CVEs14 Sep

CVE-2026-76441 — CRITICAL (CVSS 9.8)

CriticalCVSS 9.8
Audience
Network/firewall admins
Action
Patch when a fix is available; monitor exposure

CVSS 9.8 CRITICAL · Vendor: Cisco As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive interna…

Read at source →
CVEDatabase - Critical CVEs14 Sep

CVE-2026-20353 — CRITICAL (CVSS 9.8)

CriticalCVSS 9.8
Audience
Network/firewall admins
Action
Patch when a fix is available; monitor exposure

CVSS 9.8 CRITICAL · Vendor: Cisco As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive interna…

Read at source →
CVEDatabase - Critical CVEs14 Sep

CVE-2026-12944 — CRITICAL (CVSS 9.6)

CriticalCVSS 9.6

CVSS 9.6 CRITICAL · Vendor: IBM IBM Langflow OSS 1.0.0 through 1.10.0 can allow attackers to execute arbitrary Python code with root privileges (UID=0) on the Langflow server by submitting components containing socket or urllib imports. Th…

Read at source →
CVEDatabase - Critical CVEs14 Sep

CVE-2026-90703 — HIGH (CVSS 8.5)

HighCVSS 8.5
Product
D-Link DWR-M921
Impact
Command injection
Action
Patch when a fix is available; monitor exposure

CVSS 8.5 HIGH A vulnerability has been found in D-Link DWR-M921 1.1.52. The affected element is the function system of the file /boafrm/formDiskCreateShare. Such manipulation of the argument folderpath leads to os command injection. The at…

Read at source →

Threat Activity 8

Malware, campaigns and adversary tradecraft.

Breaches & Incidents 2

Ransomware, data breaches and supply-chain events.

Research & Detection 3

Detection engineering, tooling and defensive analysis.

SANS Internet Storm Center (Handler Diary)14 Sep

Apple Updates Everything, (Mon, Sep 14th)

Today, Apple released its annual update across all its operating systems. With that, Apple not only released new features but also patched 261 different vulnerabilities. This is the most vulnerabilities Apple has ever patched, but the incr…

Read at source →

Policy & Commentary 4

Industry, executive and AI-security perspective.

Schneier on Security14 Sep

Microsoft’s Patching

Once a month, Microsoft pushes a security update to all Windows users. Tomorrow’s is a new record : Microsoft’s patch for September is a doozy, with a record number of roughly 972 vulnerabilities fixed and 112 of them meeting the high crit…

Read at source →
Schneier on Security14 Sep

Using AI for Weapons Development

Last week, Anthropic released a long and detailed document describing current misuses of their Claude models. I’m still reading it, but I wanted to flag this: We identified a cell of threat actors based in northern Yemen running three weap…

Read at source →
Schneier on Security14 Sep

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking online (via Zoom) at a League of Women Voters event on Tuesday, September 22, 2026 at 5 PM ET. I’m speaking at CanSecWest 2026 in Vancouver, Canada. The confere…

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