Description

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 without freeing their contents. Each token's contents buffer is therefore leaked on every call, and the two early returns taken when the node list is empty leak the whole NodeSet. A long-lived process that minifies repeatedly, such as an asset pipeline or a server-side minifier endpoint, grows in memory without bound until it exhausts available memory and is killed, causing denial of service.

Severity (CVSS)

Base score7.5
SeverityHigh
VersionCVSS 3.1
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Provided byCISA-ADP

Weaknesses

  • CWE-401 — CWE-401 Missing Release of Memory after Effective Lifetime
  • CWE-400 — CWE-400 Uncontrolled Resource Consumption

Affected products

VendorProductVersions
GTERMARSJavaScript::Minifier::XS0 to <0.16

References

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 30 Jun 2026 07:04 UTC.