Uncontrolled Recursion Affecting php8.4-process package, versions <0:8.4.26-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-AMZN2023-PHP84PROCESS-20852521
  • published13 Oct 2026
  • disclosed25 Sept 2026

Introduced: 25 Sep 2026

NewCVE-2026-91765  (opens in a new tab)
CWE-674  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 php8.4-process to version 0:8.4.26-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-3163.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php8.4-process package and not the php8.4-process package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

cleanup_xml_node() in the SOAP XML parser recurses once per XML nesting level with no depth limit. An unauthenticated attacker can post a SOAP request containing tens of thousands of nested elements to any SoapServer endpoint, exhaust the stack and crash the process. The same unbounded recursion exists in the SOAP value decoder and in the WSDL node search helper.

CVSS Base Scores

version 3.1