Vulnerability-Lookup

GHSA-455F-PG36-WX7G

Vulnerability from github – Published: 2026-07-15 12:32 – Updated: 2026-07-15 12:32

Details

n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases — before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 — the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.

Severity

4.8 (Medium)


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

6.3 (Medium)


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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-56353"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-15T12:18:02Z",
    "severity": "MODERATE"
  },
  "details": "n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases \u2014 before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 \u2014 the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1.",
  "id": "GHSA-455f-pg36-wx7g",
  "modified": "2026-07-15T12:32:02Z",
  "published": "2026-07-15T12:32:02Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56353"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/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"
    }
  ]
}

CVE-2026-56353 (GCVE-0-2026-56353)

Vulnerability from cvelistv5 – Published: 2026-07-15 11:25 – Updated: 2026-07-15 11:25

Title

n8n - Authentication Bypass in Chat Trigger Node

Summary

Severity

6.3 (Medium)


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

4.8 (Medium)


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

CWE

CWE-287 - Improper Authentication

Assigner

VulnCheck

References

2 references

URL	Tags
https://github.com/n8n-io/n8n/security/advisories…	vendor-advisory
https://www.vulncheck.com/advisories/n8n-authenti…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
n8n	n8n	Affected: 0 , < 1.123.22 (semver) Unaffected: 1.123.22 (semver) Affected: 2.0.0 , < 2.9.3 (semver) Unaffected: 2.9.3 (semver) Affected: 2.10.0 , < 2.10.1 (semver) Unaffected: 2.10.1 (semver)

Date Public

2026-02-25 00:00

Credits

sm1ee

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "packageURL": "pkg:npm/n8n",
          "product": "n8n",
          "vendor": "n8n",
          "versions": [
            {
              "lessThan": "1.123.22",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.123.22",
              "versionType": "semver"
            },
            {
              "lessThan": "2.9.3",
              "status": "affected",
              "version": "2.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.9.3",
              "versionType": "semver"
            },
            {
              "lessThan": "2.10.1",
              "status": "affected",
              "version": "2.10.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "2.10.1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
                  "versionEndExcluding": "1.123.22",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
                  "versionEndExcluding": "2.9.3",
                  "versionStartIncluding": "2.0.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:a:n8n:n8n:*:*:*:*:*:node.js:*:*",
                  "versionEndExcluding": "2.10.1",
                  "versionStartIncluding": "2.10.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "sm1ee"
        }
      ],
      "datePublic": "2026-02-25T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "n8n contains an authentication bypass in the Chat Trigger node when configured with n8n User Auth (a non-default configuration). In affected releases \u2014 before 1.123.22, the 2.0.0 through 2.9.2 line, and 2.10.0 \u2014 the authentication check on the Chat Trigger webhook endpoint can be circumvented, allowing access without valid credentials. Fixed in 1.123.22, 2.9.3, and 2.10.1."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "LOW"
          },
          "format": "CVSS"
        },
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-15T11:25:29.334Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "GitHub Security Advisory (GHSA-jh8h-6c9q-7gmw)",
          "tags": [
            "vendor-advisory"
          ],
          "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-jh8h-6c9q-7gmw"
        },
        {
          "name": "VulnCheck Advisory: n8n - Authentication Bypass in Chat Trigger Node",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/n8n-authentication-bypass-in-chat-trigger-node"
        }
      ],
      "title": "n8n - Authentication Bypass in Chat Trigger Node",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-56353",
    "datePublished": "2026-07-15T11:25:29.334Z",
    "dateReserved": "2026-06-20T18:13:07.364Z",
    "dateUpdated": "2026-07-15T11:25:29.334Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

GHSA-455F-PG36-WX7G

CVE-2026-56353 (GCVE-0-2026-56353)

Tags

Sightings

Nomenclature