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CVE-2026-27578

n8n is an open source workflow automation platform. Prior to versions 2.10.1, 2.9.3, and 1.123.22, an authenticated user with permission to create or modify workflows could inject arbitrary scripts into pages rendered by the n8n application using different techniques on various nodes (Form Trigger node, Chat Trigger node, Send & Wait node, Webhook Node, and Chat Node). Scripts injected by a malicious workflow execute in the browser of any user who visits the affected page, enabling session hijac
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:527c7c08931f2f2444dcef769193493dac0b24763a939db927fc45c3314551b1
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-80","description":"CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n8n","vendor":"n8n-io","versions":[{"status":"affected","version":"< 1.123.22"},{"status":"affected","version":">= 2.0.0, < 2.9.3"},{"status":"affected","version":">= 2.10.0, < 2.10.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.5,"baseSeverity":"HIGH","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:H/VI:H/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-80","description":"CWE-80: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/n8n-io/n8n/commit/062644ef786b6af480afe4a0f12bc6d70040534a","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/commit/062644ef786b6af480afe4a0f12bc6d70040534a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/references/1
{"name":"https://github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/commit/1479aab2d32fe0ee087f82b9038b1035c98be2f6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/references/2
{"name":"https://github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882e","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/commit/9e5212ecbc5d2d4e6f340b636a5e84be6369882e"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/references/3
{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-2p9h-rqjw-gm92","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-2p9h-rqjw-gm92"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:3586629c3b7320239d3212e523aeed4a450745396d9318a4564c42b39c42c704 · sha256:5a0e0c2022e26c41… · /containers/cna/references/0

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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