LEONT CVE debriefs

CVE-2026-15534

Perl versions through 5.45.1 have a vulnerability in the regular expression matching process. The superlinear cache in S_regmatch can cause out-of-bounds heap reads and writes due to an undersized cache. This can lead to a process crash or heap memory corruption if an attacker controls the subject matched against a specific pattern. The vulnerability is caused by the lack of a proper check for positive ov [truncated]