CVE-2026-7261

Critical

Description

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when SoapServer is configured with SOAP_PERSISTENCE_SESSION, the handler object is persisted across requests via session storage. However, in the case SOAP requests results in an error, the persistance is handled incorrectly, resulting in freeing the object while keeping a pointer to it, which may lead to use-after-free. This may lead to memory corruption, information disclosure, or process crashes, with confidentiality, integrity, and availability impact on the vulnerable system.

SeverityCritical
CVSS9.8
Exploit probability—
ProductPhp
PublishedMay 10, 2026
First seenMay 10, 2026

How to fix

Update
  • php php8.2.31, 8.3.31, 8.4.21, 8.5.6 or later

Affected products

ProductAffected versionsFixed in
php php8.2.0 ≤ v < 8.2.31, 8.3.0 ≤ v < 8.3.31, 8.4.0 ≤ v < 8.4.21, 8.5.0 ≤ v < 8.5.68.2.31, 8.3.31, 8.4.21, 8.5.6

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