Use-after-free in PHP - CVE-2026-7261
Published: May 10, 2026
Vulnerability identifier: #VU130914
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-7261
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: PHP Group
Affected software:
PHP
PHP
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to use-after-free in SOAP header parsing when a header parsing failure occurs with SOAP_PERSISTENCE_SESSION. A remote attacker can send a specially crafted SOAP request to cause a denial of service.
Exploitation requires SOAP_PERSISTENCE_SESSION.
How to mitigate CVE-2026-7261
Install security update from vendor's website.