Vulnerability-Lookup

CVE-2026-57998 (GCVE-0-2026-57998)

Vulnerability from cvelistv5 – Published: 2026-08-22 12:26 – Updated: 2026-08-25 16:43

Title

better-npm-audit OS Command Injection via registry flag

Summary

better-npm-audit through 3.11.0, and the 4.0.0-rc.2 prerelease, builds its npm audit command by interpolating the user-supplied --registry option into a command string in src/handlers/handleInput.ts without validation or quoting, then passes that string to child_process.exec() in index.ts, which spawns a shell. A registry value containing shell metacharacters such as a semicolon, pipe, or command substitution executes arbitrary operating system commands with the privileges of the process running the audit.

Severity

8.5 (High)


                        
                          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

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-25 16:42 UTC

CWE

CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Assigner

VulnCheck mitre root

References

6 references

URL	Tags
https://github.com/jeemok/better-npm-audit/issues/119	issue-tracking
https://github.com/jeemok/better-npm-audit	product
https://github.com/jeemok/better-npm-audit/blob/f…	technical-description
https://github.com/jeemok/better-npm-audit/blob/f…	technical-description
https://github.com/jeemok/better-npm-audit/pull/120	issue-tracking
https://www.vulncheck.com/advisories/better-npm-a…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
jeemok	better-npm-audit	Affected: 0 , ≤ 3.11.0 (semver) Affected: 4.0.0-rc.2 (semver)	guessed

Date Public

2026-05-16 00:00

Credits

MD Mahmidul Hasan (BL4CK 570RM)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-57998

Vulnerability from fkie_nvd - Published: 2026-08-22 13:16 - Updated: 2026-08-25 17:17

Severity

7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/jeemok/better-npm-audit
	disclosure@vulncheck.com	https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/index.ts#L34
	disclosure@vulncheck.com	https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/src/handlers/handleInput.ts#L30-L37
	disclosure@vulncheck.com	https://github.com/jeemok/better-npm-audit/issues/119
	disclosure@vulncheck.com	https://github.com/jeemok/better-npm-audit/pull/120
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/better-npm-audit-os-command-injection-via-registry-flag
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://github.com/jeemok/better-npm-audit/issues/119

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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          "vectorString": "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/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",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "HIGH",
          "vulnIntegrityImpact": "HIGH",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "disclosure@vulncheck.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-57998",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-08-25T16:42:59.046764Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-08-22T13:16:38.263",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/jeemok/better-npm-audit"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/index.ts#L34"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/src/handlers/handleInput.ts#L30-L37"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/jeemok/better-npm-audit/issues/119"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://github.com/jeemok/better-npm-audit/pull/120"
    },
    {
      "source": "disclosure@vulncheck.com",
      "url": "https://www.vulncheck.com/advisories/better-npm-audit-os-command-injection-via-registry-flag"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/jeemok/better-npm-audit/issues/119"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Received",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-F8P4-PXM9-XWX5

Vulnerability from github – Published: 2026-08-22 15:31 – Updated: 2026-08-22 15:31

Details

Severity

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8.5 (High)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-57998"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-22T13:16:38Z",
    "severity": "HIGH"
  },
  "details": "better-npm-audit through 3.11.0, and the 4.0.0-rc.2 prerelease, builds its npm audit command by interpolating the user-supplied --registry option into a command string in src/handlers/handleInput.ts without validation or quoting, then passes that string to child_process.exec() in index.ts, which spawns a shell. A registry value containing shell metacharacters such as a semicolon, pipe, or command substitution executes arbitrary operating system commands with the privileges of the process running the audit.",
  "id": "GHSA-f8p4-pxm9-xwx5",
  "modified": "2026-08-22T15:31:02Z",
  "published": "2026-08-22T15:31:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57998"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jeemok/better-npm-audit/issues/119"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jeemok/better-npm-audit/pull/120"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jeemok/better-npm-audit"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/index.ts#L34"
    },
    {
      "type": "WEB",
      "url": "https://github.com/jeemok/better-npm-audit/blob/fd99a0f41ff4342b8a0a6fdbe5a17261de3d0544/src/handlers/handleInput.ts#L30-L37"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/better-npm-audit-os-command-injection-via-registry-flag"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "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/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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-57998 (GCVE-0-2026-57998)

FKIE_CVE-2026-57998

GHSA-F8P4-PXM9-XWX5

Tags

Sightings

Nomenclature