CVE-2026-7258 Affecting php-mysqlnd package, versions <0:7.4.33-4.module+el8.10.0+90942+d80f51f3


Severity

Recommended
0.0
high
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-ORACLE8-PHPMYSQLND-17139623
  • published3 Jun 2026
  • disclosed10 May 2026

Introduced: 10 May 2026

CVE-2026-7258  (opens in a new tab)

How to fix?

Upgrade Oracle:8 php-mysqlnd to version 0:7.4.33-4.module+el8.10.0+90942+d80f51f3 or higher.
This issue was patched in ELSA-2026-34354.

NVD Description

Note: Versions mentioned in the description apply only to the upstream php-mysqlnd package and not the php-mysqlnd package as distributed by Oracle. See How to fix? for Oracle:8 relevant fixed versions and status.

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, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.

CVSS Base Scores

version 3.1