securityBACKGROUND
Critical security issue affecting PHP
BACKGROUND
1 SIGNALFIRST DETECTED 21 October 2026
Narrative synthesis pending — 1 signal collected.
How the story developed
Other feeds and industry voices
21 Oct
Widespread PHP Flaw May Cause Many Site Outages Today
Expect to see quite a few websites serving "404" or "Page Not Found" errors today: Nearly 70 percent of websites need to update their core software to fix a pair of
REPORT · WHEN · Krebs on SecurityOPEN STORY
21 Oct
Urgent security updates for PHP due to serious vulnerabilities
<p>PHP has released emergency updates for two severe runtime flaws named PHP2Shell, tracked as CVE-2026-109618 and CVE-2026-109619.</p> <p>Affecting versions back to PHP 5.4, the
REPORT · WHO · Dev.toOPEN STORY
21 Oct
Cyber agency warns websites may go dark as PHP prepares critical fix reut.rs/4yWFh4t
Cyber agency warns websites may go dark as PHP prepares critical fix reut.rs/4yWFh4t
OPINION · WHAT · ReutersOPEN STORY
Sources
NCSC UK
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