8.5
HIGH CVSS 4.0
CVE-2026-55849
@cyclonedx/cyclonedx-npm: Shell Injection via Unsanitized `--workspace` Argument
Description

@cyclonedx/cyclonedx-npm creates CycloneDX Software Bill of Materials from npm projects. From 2.1.0 before 5.0.0, the CLI passes user-supplied --workspace values to a subshell without proper sanitization when npm_execpath is unset or empty, allowing arbitrary OS command execution with the privileges of the invoking user. This issue is fixed in version 5.0.0.

INFO

Published Date :

July 8, 2026, 10:17 p.m.

Last Modified :

July 8, 2026, 10:17 p.m.

Remotely Exploit :

No
Affected Products

The following products are affected by CVE-2026-55849 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 HIGH [email protected]
Solution
Update the package to version 5.0.0 or later to fix arbitrary OS command execution.
  • Update @cyclonedx/cyclonedx-npm to version 5.0.0 or later.
References to Advisories, Solutions, and Tools
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-55849 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-55849 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-55849 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 08, 2026

    Action Type Old Value New Value
    Added Affected [{'vendor': 'CycloneDX', 'product': 'cyclonedx-node-npm', 'versions': [{'status': 'affected', 'version': '>= 2.1.0, < 5.0.0'}]}]
    Added Description @cyclonedx/cyclonedx-npm creates CycloneDX Software Bill of Materials from npm projects. From 2.1.0 before 5.0.0, the CLI passes user-supplied --workspace values to a subshell without proper sanitization when npm_execpath is unset or empty, allowing arbitrary OS command execution with the privileges of the invoking user. This issue is fixed in version 5.0.0.
    Added CVSS V4.0 AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CWE CWE-78
    Added Reference https://github.com/CycloneDX/cyclonedx-node-npm/commit/9f646253f4263d8644dadb86e5597fad996f688f
    Added Reference https://github.com/CycloneDX/cyclonedx-node-npm/pull/1476
    Added Reference https://github.com/CycloneDX/cyclonedx-node-npm/releases/tag/v5.0.0
    Added Reference https://github.com/CycloneDX/cyclonedx-node-npm/security/advisories/GHSA-v75r-vx73-82pj
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.