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CVE PROGRAM SOURCE RECORD6.3 Medium

CVE-2026-7258

Out-of-bounds read in urldecode() on NetBSD

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Status
Published
Published
Updated
Assigning organization
php

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, 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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

PHP Group PHP

Default version status: affected

  • 8.2.* to < 8.2.31affected
  • 8.3.* to < 8.3.31affected
  • 8.4.* to < 8.4.21affected
  • 8.5.* to < 8.5.6affected

References