Vulnerability-Lookup

CVE-2026-42233 (GCVE-0-2026-42233)

Vulnerability from cvelistv5 – Published: 2026-05-04 18:35 – Updated: 2026-05-05 14:14

Title

n8n: SQL Injection in Oracle Database Node via Limit Field

Summary

n8n is an open source workflow automation platform. Prior to versions 1.123.32, 2.17.4, and 2.18.1, a flaw in the Oracle Database node's select operation allowed user-controlled input passed into the Limit field via expressions to be interpolated directly into the SQL query without sanitization or parameterization. In workflows where external input is passed into the Limit field (e.g., from a webhook), an attacker could inject arbitrary SQL and exfiltrate data from the connected Oracle database. This issue has been patched in versions 1.123.32, 2.17.4, and 2.18.1.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

CWE

CWE-89 - Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

Assigner

GitHub_M

References

URL

Tags

https://github.com/n8n-io/n8n/security/advisories…

x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n8n-io	n8n	Affected: < 1.123.32 Affected: >= 2.17.0, < 2.17.4 Affected: >= 2.18.0, < 2.18.1

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-42233

Vulnerability from fkie_nvd - Published: 2026-05-04 19:16 - Updated: 2026-05-06 18:07

Severity ?

9.8 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/n8n-io/n8n/security/advisories/GHSA-r6jc-mpqw-m755	Vendor Advisory

Impacted products

Vendor	Product	Version
n8n	n8n	*
n8n	n8n	*
n8n	n8n	2.18.0

JSON

To clipboard

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              "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:enterprise:node.js:*:*",
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              "versionEndExcluding": "1.123.32",
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              "versionEndExcluding": "2.17.4",
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    }
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  "id": "CVE-2026-42233",
  "lastModified": "2026-05-06T18:07:22.830",
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GHSA-R6JC-MPQW-M755

Vulnerability from github – Published: 2026-04-29 21:08 – Updated: 2026-05-08 01:30

Summary

n8n has SQL Injection in Oracle Database Node via Limit Field

Details

Impact

A flaw in the Oracle Database node's select operation allowed user-controlled input passed into the Limit field via expressions to be interpolated directly into the SQL query without sanitization or parameterization. In workflows where external input is passed into the Limit field (e.g., from a webhook), an attacker could inject arbitrary SQL and exfiltrate data from the connected Oracle database.

Exploitation requires a specific workflow configuration: - The Oracle Database node must be used with user-controlled input passed via expressions into the Limit field. - Authentication requirements depend on the workflow's configuration (e.g., an unauthenticated webhook endpoint would allow unauthenticated exploitation).

Patches

The issue has been fixed in n8n versions 1.123.32, 2.17.4, and 2.18.1. Users should upgrade to one of these versions or later to remediate the vulnerability.

Workarounds

If upgrading is not immediately possible, administrators should consider the following temporary mitigations: - Limit workflow creation and editing permissions to fully trusted users only. - Disable the Oracle Database node by adding n8n-nodes-base.oracleDatabase to the NODES_EXCLUDE environment variable. - Avoid passing unvalidated external user input into the Oracle Database node's Limit field via expressions.

These workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.

Severity ?

9.8 (Critical)


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

5.3 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Show details on source website

JSON

To clipboard

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  "aliases": [
    "CVE-2026-42233"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-89"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-04-29T21:08:27Z",
    "nvd_published_at": "2026-05-04T19:16:05Z",
    "severity": "MODERATE"
  },
  "details": "## Impact\nA flaw in the Oracle Database node\u0027s select operation allowed user-controlled input passed into the `Limit` field via expressions to be interpolated directly into the SQL query without sanitization or parameterization. In workflows where external input is passed into the `Limit` field (e.g., from a webhook), an attacker could inject arbitrary SQL and exfiltrate data from the connected Oracle database.\n\nExploitation requires a specific workflow configuration:\n- The Oracle Database node must be used with user-controlled input passed via expressions into the `Limit` field.\n- Authentication requirements depend on the workflow\u0027s configuration (e.g., an unauthenticated webhook endpoint would allow unauthenticated exploitation).\n\n## Patches\nThe issue has been fixed in n8n versions 1.123.32, 2.17.4, and 2.18.1. Users should upgrade to one of these versions or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Limit workflow creation and editing permissions to fully trusted users only.\n- Disable the Oracle Database node by adding `n8n-nodes-base.oracleDatabase` to the `NODES_EXCLUDE` environment variable.\n- Avoid passing unvalidated external user input into the Oracle Database node\u0027s `Limit` field via expressions.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.",
  "id": "GHSA-r6jc-mpqw-m755",
  "modified": "2026-05-08T01:30:42Z",
  "published": "2026-04-29T21:08:27Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-r6jc-mpqw-m755"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42233"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/n8n-io/n8n"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "n8n has SQL Injection in Oracle Database Node via Limit Field"
}

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.

Action not permitted

CVE-2026-42233 (GCVE-0-2026-42233)

FKIE_CVE-2026-42233

GHSA-R6JC-MPQW-M755

Impact

Patches

Workarounds

Tags

Sightings

Nomenclature