CVE-2026-56018 JavaScript::Minifier::XS versions before 0.16 for Perl leak memory on every call to minify(), allowing unbounded memory growth

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...

CVE-2026-56018

The JavaScript::Minifier::XS Perl module, in versions prior to 0.16 , contains a memory leak vulnerability within the JsMinify (XS.xs) function. The root cause is that the cleanup process only frees NodeSet structures but fails to free the per-token contents buffers allocated in JsSetNodeContents...