CVE-2006-7226: Red Hat Enterprise Linux
Medium severity, CVSS 4.3. EPSS: 1.6% chance of exploitation in the next 30 days.
Perl-Compatible Regular Expression (PCRE) library before 6.7 does not properly calculate the compiled memory allocation for regular expressions that involve a quantified "subpattern containing a named recursion or subroutine reference," which allows context-dependent attackers to cause a denial of service (error or crash).
Affected products
Published 2007-12-03. Last modified 2026-06-16.