CVE-2026-56017: NULL Pointer Dereference

JavaScript::Minifier::XS versions before 0.16 for Perl crash with a NULL pointer dereference when the first meaningful token of the input is a slash. The regexp versus division disambiguator in JsTokenizeString XS.xs inspects the previous token's last byte to choose between a regexp literal and a...

CVE-2026-56018: Missing Release of Memory after Effective Lifetime

JavaScript::Minifier::XS versions before 0.16 for Perl leak memory on every call to minify, allowing unbounded memory growth. In JsMinify XS.xs the cleanup frees only the NodeSet structures and never the per-token contents buffers allocated in JsSetNodeContents; JsDiscardNode unlinks nodes withou...