Versions of concat-with-sourcemaps before 1.0.6 allocates uninitialized Buffers when a number is passed as a separator.
Full advisory text at GitHub advisory.
npm package report
Is concat-with-sourcemaps safe?
concat-with-sourcemaps (npm) has 1 known vulnerability, the worst rated MODERATE. Upgrade to 1.0.6 or later to clear it. No malicious-package signal is recorded.
// reach
0 direct dependencies
none carry a known advisory
Create a free accountfor every dependency path, dependent and what to upgrade
// ai model usage
Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.
cvss
5.0
medium
severity band, no base score published
epss
not scored
chance of exploitation in 30 days
xyz score
not scored
CyberXYZ composite out of 10
fig. 01 — GHSA-2xv3-h762-ccxv, the advisory selected below
// 1 advisories
Is concat-with-sourcemaps safe to install?
CyberXYZ does not call a package safe in absolute terms. It records 1 known vulnerability for concat-with-sourcemaps (npm), the worst rated MODERATE, and no malicious-package signal. Whether it is acceptable depends on the version you run.
Does concat-with-sourcemaps have known vulnerabilities?
Yes. CyberXYZ records 1 known vulnerability for concat-with-sourcemaps (npm), the worst rated MODERATE. They are GHSA-2xv3-h762-ccxv.
Which version of concat-with-sourcemaps should I use?
1.0.6 or later clears every advisory recorded for concat-with-sourcemaps (npm). Check the release you pick before installing it.
How do I check concat-with-sourcemaps before installing?
Search concat-with-sourcemaps in CyberXYZ Check at https://cyberxyz.io/check?q=concat-with-sourcemaps. The xyz Scanner checks a project's dependencies, and CyberXYZ Proxy checks each package as it is installed.
Checked 2026-11-14 at 06:18 UTC. The most recent advisory here was published 2019-05-29. Updated continuously from NVD, GHSA, OSV and CNA feeds.