AL26-026 - Critical vulnerabilities impacting PHP - CVE-2026-109618 and CVE-2026-109619 - Update 1
Number: AL26-026 Date: October 21, 2026 Updated: October 23, 2026 Audience This Alert is intended for IT professionals and managers. Purpose An Alert is used to raise awareness of a recently identified cyber threat that may impact cyber information assets, and to provide additional detection and mitigation advice to recipients.
Summary from Canadian Centre for Cyber Security.
Explained
The technology and terms in this story. Learn more
Why it was possible
The weaknesses behind this story's CVEs, from each CVE Record.
Vulnerabilities in this story
Severity and exploitation facts from NVD, FIRST, and CISA.
Related coverage
Other sources covering the same vulnerabilities or event.
SANS Stormcast Thursday, October 22nd, 2026: Critical PHP RCE Vulnerabilities Exploited (CVE-2026-109618, CVE-2026-109619); Fortinet AI-Driven Security Hardening Release for FortiOS and More
Podcast13 minSANS Internet Storm Center StormCast4d agoAppSecNetworkVulnerabilitiesCVE-2026-109618CVE-2026-109619
