RHSA-2026:87070HighCVSS 8.1

Red Hat Security Advisory: php security update

Published
October 21, 2026
Last Modified
October 22, 2026

🔗 CVE IDs covered (3)

CVE-2026-91765 →CVE-2026-109618 →CVE-2026-109619 →

📋 Description

CVE-2026-91765 — php: php: Denial of Service via unbounded recursion in SOAP parser CVE-2026-109618 — php: OOM bailout during request parsing leads to memory corruption and RCE CVE-2026-109619 — php: fatal error handling retains stale request state leading to use-after-free

🎯 Affected products200

  • Red Hat Enterprise Linux AppStream (v. 10)
  • php-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-0:8.3.36-1.el10_2.src as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-debuginfo-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-debuginfo-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-debuginfo-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-bcmath-debuginfo-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-debuginfo-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-debuginfo-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-debuginfo-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-cli-debuginfo-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-debuginfo-0:8.3.36-1.el10_2.aarch64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-debuginfo-0:8.3.36-1.el10_2.ppc64le as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-debuginfo-0:8.3.36-1.el10_2.s390x as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • php-common-debuginfo-0:8.3.36-1.el10_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 10)
  • +170 more not shown

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: If SoapServer is unused, disable or remove the SOAP extension (php-soap / extension=soap) so the vulnerable parser is not loaded. Restrict any exposed SoapServer endpoints to trusted clients using a host firewall or network segmentation. Process and cgroup resource limits may contain host impact but do not prevent PHP-FPM worker crashes or pool exhaustion from crafted nested SOAP requests. Workaround: See the security bulletin for a detailed mitigation procedure.

🔗 References (6)