Out-of-bounds Read in Leont Perl

CVE-2026-15534

Perl versions through 5.45.1 have out-of-bounds heap reads and writes during regular expression matching via an undersized superlinear cache in S_regmatch. The regex engine's superlinear cache holds one bit per subject position for each p…

Vulnerability class: Buffer Overflow

Affected products

Weakness classification (CWE)

References