medium6.5
CVE-2026-7259
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 …
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Php | Php | from 8.2.0 before 8.2.31 from 8.3.0 before 8.3.31 from 8.4.0 before 8.4.21 from 8.5.0 before 8.5.6 |