Report: CVE-2026-7259 - Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init() - Full Analysis

Report: CVE-2026-7259 - Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init() - Full Analysis

CVE ID :CVE-2026-7259 Published : May 10, 2026, 5:16 a.m. | 35 minutes ago 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(). Severity: 2.1 | LOW Visit the link for more details, such as CVSS details, affected products, timeline, and more...

CVE Details

Severity
LOW
Published
May 10, 2026
Affected Product: PHP
Impact: denial of service