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CVE-2026-56356

🗓️ 30 Jun 2026 22:08:35Reported by VulnCheckType 
cve
 cve
🔗 web.nvd.nist.gov👁 64 Views

Stored XSS in n8n Chat Trigger Custom CSS via sanitize-html misconfig; authenticated users can inject JS.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-56356
30 Jun 202622:08
–attackerkb
circl
Circl
CVE-2026-56356
1 Jul 202621:56
–circl
cvelist
Cvelist
CVE-2026-56356 n8n - Stored Cross-Site Scripting in Chat Trigger Node Custom CSS Field
30 Jun 202622:08
–cvelist
euvd
EUVD
EUVD-2026-40444
1 Jul 202600:34
–euvd
mend
Mend
CVE-2026-56356
30 Jun 202622:08
–mend
nvd
NVD
CVE-2026-56356
30 Jun 202623:17
–nvd
osv_ghsa
osv_ghsa
GHSA-3C7F-5HGJ-H279 n8n has XSS in Chat Trigger Node through Custom CSS
27 Mar 202618:06
–osv_ghsa
ptsecurity
Positive Technologies
PT-2026-54040
30 Jun 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-56356: Improper Neutralization of Input During Web Page Generation
30 Jun 202600:00
–rapid7
snyk
Snyk
Cross-site Scripting (XSS)
30 Jun 202623:18
–snyk
Rows per page
NVD
Vulners
CNA
Node
OR
n8nn8nRange<1.123.27node.js
n8nn8nRange2.0.0–2.13.3node.js
n8nn8nMatch2.14.0node.js
[
  {
    "vendor": "n8n",
    "product": "n8n",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/n8n",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "1.123.27"
      },
      {
        "version": "1.123.27",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "2.0.0-rc.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.13.3"
      },
      {
        "version": "2.13.3",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "2.14.0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.14.1"
      },
      {
        "version": "2.14.1",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  },
  {
    "vendor": "n8n",
    "product": "n8n",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/n8n",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.14.1"
      },
      {
        "version": "2.14.1",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  },
  {
    "vendor": "n8n",
    "product": "n8n",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:npm/n8n",
    "versions": [
      {
        "version": "0",
        "status": "affected",
        "versionType": "semver",
        "lessThan": "2.13.3"
      },
      {
        "version": "2.13.3",
        "status": "unaffected",
        "versionType": "semver"
      }
    ]
  }
]

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02 Jul 2026 19:38Current
5.5Medium risk
Vulners AI Score5.5
CVSS 45.1
CVSS 3.15.4
EPSS0.0025
SSVC
64