PT-2026-39448 · Php · Php

Ilia Alshanetsky + 1 · Published 2026-05-10 · Updated 2026-05-10 · CVE-2026-7261

NVD

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:X/V:X/RE:M/U:Amber

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.

Fix

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

CVE-2026-7261

Affected Products

Php

References · 2

• https://github.com/php/php-src/security/advisories/GHSA-m33r-qmcv-p97q · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-7261 · Security Note