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Upcoming Critical PHP Security Release

The PHP security team announces an upcoming PHP security release that fixes two critical vulnerabilities, both rated CVSS v4.0 9.2. The release is scheduled for Wednesday, 21 October 2026 at 14:00 UTC. The team says it may release earlier if details become public or exploitation in the wild is seen. The notice gives no CVE IDs, affected versions or technical details.

TL;DR PHP security team pre-announces a 21 October 2026 release fixing two CVSS 9.2 critical vulnerabilities.

Organisations named here

  • PHP security team

Technologies named here

  • PHP
  • CVSS