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CISA KEV additions

CISA Adds 1 Known Exploited Vulnerability to Catalog (October 15, 2026)

Source: CISA KEV Catalog · Updated 2026-11-07

Summary

On October 15, 2026, CISA added 1 vulnerability to its Known Exploited Vulnerabilities (KEV) catalog: CVE-2026-21589. A KEV listing means CISA has evidence of active exploitation. CISA sets a remediation due date for US federal civilian agencies under its binding operational directives; any organization running the affected products should treat these as patch-now priorities.

CVE-2026-21589: Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability

Atlassian · Multiple Products

Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions.

Federal due date
2026-10-18
Ransomware use
Unknown
Added
2026-10-15

Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Read our explainer · NVD record · Atlassian KEV history

Also added to KEV in October 2026

  • October 30, 2026: CVE-2026-118527, Ivanti Connect Secure (Ivanti Connect Secure Generation of Predictable Numbers or Identifiers Vulnerabi)
  • October 30, 2026: CVE-2026-111357, Ivanti Connect Secure (Ivanti Connect Secure Missing Authentication for Critical Function Vulnerability)
  • October 29, 2026: CVE-2026-97229, GitLab Community Edition and Enterprise Edition (GitLab Community Edition and Enterprise Edition Integer Overflow or Wraparound V)
  • October 29, 2026: CVE-2026-76418, Cisco Secure Firewall ASA Software and Cisco Secure FTD Software (Cisco Secure Firewall ASA Software and Cisco Secure FTD Software Unchecked Retur)
  • October 28, 2026: CVE-2026-46300, Linux Kernel (Linux Kernel Missing Initialization of a Variable Vulnerability)
  • October 28, 2026: CVE-2026-41709, Broadcom VMware ESX (Broadcom VMWare ESX Insufficient Logging Vulnerability)
  • October 27, 2026: CVE-2026-48356, Adobe Commerce and Magento (Adobe Commerce and Magento Unrestricted Upload of File with Dangerous Type Vulne)
  • October 27, 2026: CVE-2026-111497, Google Brotli (Google Brotli Unchecked Return Value Vulnerability)
  • October 26, 2026: CVE-2026-109619, PHP Group PHP (PHP Stale Internal Request-State Vulnerability)
  • October 26, 2026: CVE-2026-109618, PHP Group PHP (PHP Memory Corruption Vulnerability)
  • October 23, 2026: CVE-2026-114625, Arista VeloCloud Orchestrator (Arista VeloCloud Orchestrator SQL Injection Vulnerability)
  • October 23, 2026: CVE-2026-110447, Collabora Collabora Online – Built-in CODE Server (Collabora Online – Built-in CODE Server OS Command Injection Vulnerability)
  • October 20, 2026: CVE-2026-96656, Plex Media Server (Plex Media Server External Control of File Name or Path Vulnerability)
  • October 20, 2026: CVE-2026-96655, Plex Media Server (Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability)
  • October 20, 2026: CVE-2026-96654, Plex Media Server (Plex Media Server Improper Neutralization of Encoded URI Schemes in a Web Page V)
  • October 20, 2026: CVE-2026-96652, Plex Media Server (Plex Media Server Server-Side Request Forgery (SSRF) Vulnerability)
  • October 20, 2026: CVE-2026-110936, Siemens Software Center (Siemens Software Center Uncontrolled Search Path Element Vulnerability)
  • October 20, 2026: CVE-2026-106931, EG Secure Solutions SiteGuard Server Edition (EG Secure Solutions SiteGuard Server Edition OS Command Injection Vulnerability)
  • October 16, 2026: CVE-2026-102764, BeyondTrust Remote Support (BeyondTrust Remote Support Authentication Bypass by Spoofing Vulnerability)
  • October 16, 2026: CVE-2025-61624, Fortinet Multiple Products (Fortinet Multiple Products Path Traversal Vulnerability)
  • October 14, 2026: CVE-2026-76519, Cisco Secure Email Gateway (Cisco Secure Email Gateway Relative Path Traversal Vulnerability)
  • October 14, 2026: CVE-2026-105134, Ahsay AhsayCBS (Ahsay AhsayCBS Command Injection Vulnerability)
  • October 14, 2026: CVE-2026-105133, Ahsay AhsayCBS (Ahsay AhsayCBS Improper Authentication Vulnerability)
  • October 14, 2026: CVE-2026-0322, Palo Alto Networks PAN-OS (Palo Alto Networks PAN-OS Code Injection Vulnerability)
  • October 13, 2026: CVE-2026-96951, Microsoft Windows (Microsoft Windows Command Injection Vulnerability)

Check whether you run these products: our vulnerability scanner comparison covers tools that detect KEV-listed flaws. See also the KEV dashboard and KEV history by vendor.