High 8.5Published Sep 17, 2026

CVE-2026-71538@cyclonedx/cyclonedx-npm: Shell Injection via Unsanitized --workspace Argument on Windows

Updated under an hour ago (Oct 28, 2026, 6:00 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

@cyclonedx/cyclonedx-npm creates CycloneDX Software Bill of Materials from npm projects. Prior to version 6.0.0, the Windows fallback path in src/npmRunner.ts, used when npm_execpath does not provide the npm CLI path, can construct a shell command containing an untrusted value from the --workspace option. When an attacker can influence that option and the fallback npm execution path is reached, shell metacharacters in the workspace value can execute arbitrary operating-system commands with the privileges of the user running the CLI, allowing data access, file modification, or service disruption. This issue is fixed in version 6.0.0.

CVSS: 8.5 HIGH (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Awaiting Analysis
Record last updated: Sep 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

CycloneDX cyclonedx-node-npm cyclonedx:node_npm (from the name)	before 6.0.0	CNA record

References

References

https://github.com/CycloneDX/cyclonedx-node-npm/security/advisories/GHSA-q69g-4hcv-6jg4	x-refsource-confirm
https://github.com/CycloneDX/cyclonedx-node-npm/pull/1489	x-refsource-misc
https://github.com/CycloneDX/cyclonedx-node-npm/commit/15d3beb5bcd2b0b6eccfdf31192f5103b3f12c0f	x-refsource-misc
https://github.com/CycloneDX/cyclonedx-node-npm/releases/tag/v6.0.0	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.