Integer overflow in PHP - CVE-2026-42371
Published: May 10, 2026
Vulnerability identifier: #VU130918
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-42371
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
PHP
PHP
Software vendor:
PHP Group
PHP Group
Description
The vulnerability allows a remote attacker to cause incorrect URI parsing results.
The vulnerability exists due to numeric truncation in text range comparison in uriparser when parsing crafted URI input. A remote attacker can supply crafted URI input to cause incorrect URI parsing results.
Remediation
Install security update from vendor's website.