← Back

CVE-2026-7259

nvd nist
Published: May 10, 2026Modified: Jul 24, 2026

JSON object

Loading...
2.1
Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/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:X/AU:Y/R:X/V:X/RE:X/U:Amber
Show more
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/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:X/AU:Y/R:X/V:X/RE:X/U:AmberShow less
Source: security@php.net (Secondary)

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, a mismatch between encoding lists in Oniguruma and mbfl leads to  a NULL pointer dereference, resulting in a segmentation fault and denial of service. The vulnerability is exploitable when user-controlled input can influence the encoding passed to mb_regex_encoding().

Affected (4)

Products: Php: Php
Php
1 product
Php
Configuration A
4 vulnerable
Vulnerable SoftwareAffected Versions
Php
Php
From 8.2.0 to 8.2.31
Php
From 8.3.0 to 8.3.31
Php
From 8.4.0 to 8.4.21
Php
From 8.5.0 to 8.5.6

Related CWEs

CWE-476
NULL Pointer Dereference
The product dereferences a pointer that it expects to be valid but is NULL.

References (1)

Source: security@php.net
Vendor Advisory

Timeline

No history available yet.