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CVE-2026-71538

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

HIGH
8.5
CVSS Score
Published: September 17, 2026 at 02:35 PM UTC
Updated: September 30, 2026 at 05:51 PM UTC
1 product affected across 1 vendorNode Npm

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Severity
HIGH8.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

@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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Node Npm· Cyclonedx
60%
v < 6.0.0
Affected range stops below 6.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (4)

x_refsource_CONFIRM
Source: cverecord
https://github.com/CycloneDX/cyclonedx-node-npm/security/advisories/GHSA-q69g-4hcv-6jg4
x_refsource_MISC
Source: cverecord
https://github.com/CycloneDX/cyclonedx-node-npm/pull/1489
x_refsource_MISC
Source: cverecord
https://github.com/CycloneDX/cyclonedx-node-npm/commit/15d3beb5bcd2b0b6eccfdf31192f5103b3f12c0f
x_refsource_MISC
Source: cverecord
https://github.com/CycloneDX/cyclonedx-node-npm/releases/tag/v6.0.0

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHGitHub_M
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-78

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