CVE-2026-109618
PHP Memory Corruption in PHP. CISA confirmed attackers exploit it and added it to its Known Exploited Vulnerabilities catalog on 26 October 2026.
- Product
- PHP
- Added to CISA's catalog
- Federal fix-by date
- Ransomware
- No known use in ransomware campaigns
- Vendor advisories
- Sources
- CISA’s catalog, NVD entry
CISA’s description.
PHP contains an out-of-memory corruption vulnerability that allows for unauthenticated remote code execution.
More from PHP Group this year.
- CVE-2026-109619 PHP Stale Internal Request-State, added
Every flaw CISA confirmed exploited in the last 30 days is on the exploit watch. This is not security advice. Check the vendor’s advisory before acting. From CISA’s catalog of 4 November 2026.