Vulnerability-Lookup

GHSA-QMQ2-XJJF-5FFP

Vulnerability from github – Published: 2026-07-10 15:31 – Updated: 2026-07-10 15:31

Details

n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.

Severity

4.1 (Medium)


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

5.1 (Medium)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-56354"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-10T15:16:43Z",
    "severity": "MODERATE"
  },
  "details": "n8n before 1.123.24, 2.10.4, and 2.12.0 (across its 1.x and 2.x branches) contains cross-site scripting and open redirect vulnerabilities in the Form Node due to unsanitized HTML description fields and overly permissive iframe sandbox policies. Authenticated users with workflow creation permissions can inject malicious scripts or redirect parameters to perform stored XSS attacks or phishing redirects against end users.",
  "id": "GHSA-qmq2-xjjf-5ffp",
  "modified": "2026-07-10T15:31:40Z",
  "published": "2026-07-10T15:31:40Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56354"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/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-2026-56354 (GCVE-0-2026-56354)

Vulnerability from cvelistv5 – Published: 2026-07-10 13:57 – Updated: 2026-07-10 16:42

Title

n8n - Cross-Site Scripting and Open Redirect in Form Node

Summary

Severity

5.1 (Medium)


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

4.1 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

VulnCheck

References

2 references

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

Impacted products

3 products

Vendor	Product	Version
n8n	n8n	Affected: 0 , < 1.123.24 (semver) Unaffected: 1.123.24 (semver) Affected: 2.0.0-rc.0 , < 2.10.4 (semver) Unaffected: 2.10.4 (semver) Affected: 2.11.0 , < 2.12.0 (semver) Unaffected: 2.12.0 (semver)
n8n	n8n	Affected: 0 , < 2.10.4 (semver) Unaffected: 2.10.4 (semver)
n8n	n8n	Affected: 0 , < 1.123.24 (semver) Unaffected: 1.123.24 (semver)

Date Public

2026-03-25 00:00

Credits

tCu0n9

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JSON

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        "metrics": [
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            "other": {
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                "id": "CVE-2026-56354",
                "options": [
                  {
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                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-10T16:42:31.372790Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
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        "providerMetadata": {
          "dateUpdated": "2026-07-10T16:42:43.575Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
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            },
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              "versionType": "semver"
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              "version": "2.10.4",
              "versionType": "semver"
            },
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              "status": "affected",
              "version": "2.11.0",
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            },
            {
              "status": "unaffected",
              "version": "2.12.0",
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      "cpeApplicability": [
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        }
      ],
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            "vulnIntegrityImpact": "NONE"
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            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
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            "version": "3.1"
          },
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              "type": "CWE"
            }
          ]
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        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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      },
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          "name": "GitHub Security Advisory (GHSA-w673-8fjw-457c)",
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          ],
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        },
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          "tags": [
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          ],
          "url": "https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node"
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  "cveMetadata": {
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    "dateReserved": "2026-06-20T18:13:07.364Z",
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}

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-QMQ2-XJJF-5FFP

CVE-2026-56354 (GCVE-0-2026-56354)

Tags

Sightings

Nomenclature