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CVE-2026-7259

Null pointer dereference in php_mb_check_encoding() via mb_ereg_search_init() PUBLISHED

Description (CNA)

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 (CNA)

Vendor / productVersions
PHP Group / PHPaffected 8.2.* before 8.2.31; affected 8.3.* before 8.3.31; affected 8.4.* before 8.4.21; affected 8.5.* before 8.5.6

CWE

CWE-476

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.