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CVE-2026-56354

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:d4e36fce49b9531202f43a7f9f9bbabdb9a78d8cc4f8e9b90573720f5506ab70
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 3 assertions

{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"1.123.24","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.24","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/2

{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.10.4","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.10.4","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/1

{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"1.123.24","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.24","versionType":"semver"},{"lessThan":"2.10.4","status":"affected","version":"2.0.0-rc.0","versionType":"semver"},{"status":"unaffected","version":"2.10.4","versionType":"semver"},{"lessThan":"2.12.0","status":"affected","version":"2.11.0","versionType":"semver"},{"status":"unaffected","version":"2.12.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/0
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

3 source assertions
{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"1.123.24","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.24","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/2
{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.10.4","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.10.4","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/1
{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"1.123.24","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.24","versionType":"semver"},{"lessThan":"2.10.4","status":"affected","version":"2.0.0-rc.0","versionType":"semver"},{"status":"unaffected","version":"2.10.4","versionType":"semver"},{"lessThan":"2.12.0","status":"affected","version":"2.11.0","versionType":"semver"},{"status":"unaffected","version":"2.12.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.1,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"PASSIVE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-79","description":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"GitHub Security Advisory (GHSA-w673-8fjw-457c)","tags":["vendor-advisory"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-w673-8fjw-457c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/references/0
{"name":"VulnCheck Advisory: n8n - Cross-Site Scripting and Open Redirect in Form Node","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/n8n-cross-site-scripting-and-open-redirect-in-form-node"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:6077a36a4955cdb57800ee1e7bba25912f020b34f2d3269cd388aa4cb705a6ea · sha256:ff41fbb7803ac186… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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