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[UPDATE NOW] PHP RCE Vulnerability (CVE-2026-109618 and CVE-2026-109619)

cyberdust2kOct 21, 2026, 4:37 AM

### Summary See the links for context: https://cert.europa.eu/publications/security-advisories/2026-018/ https://www.php.net/archive/2026.php#2026-10-20-1 https://jackalsyn.com/posts/php-up-2026.html PHP will release a fix for a serious RCE flaw today (oct 21st) at 2 pm UTC As per CERT-EU, mitigation by disabling or restricting internet access to affected systems is highly recommended, which is undesirable for productive systems. As Mailcow uses PHP extensively, a timely patch for this vulnerability is required to safely operate it further. ### Motivation Security ### Additional context _No response_

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