CVE Explorer

CVE-2026-21877

n8n is an open source workflow automation platform. In versions 0.121.2 and below, an authenticated attacker may be able to execute malicious code using the n8n service. This could result in full compromise and can impact both self-hosted and n8n Cloud instances. This issue is fixed in version 1.121.3. Administrators can reduce exposure by disabling the Git node and limiting access for untrusted users, but upgrading to the latest version is recommended.

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:06a6a80359954402d95b4f0ddd2545aceb922b19d9e6b301664ac8e2dfa5e557

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion

{"product":"n8n","vendor":"n8n-io","versions":[{"status":"affected","version":"< 1.121.3"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":10,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-94","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-434","description":"CWE-434: Unrestricted Upload of File with Dangerous Type","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/problemTypes/1/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/n8n-io/n8n/commit/f4b009d00d1f4ba9359b8e8f1c071e3d910a55f6","tags":["x_refsource_MISC"],"url":"https://github.com/n8n-io/n8n/commit/f4b009d00d1f4ba9359b8e8f1c071e3d910a55f6"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /containers/cna/references/1

{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-v364-rw7m-3263","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-v364-rw7m-3263"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:a8d195a150e8649017e0812d38611b279e60d73428653e61986ef8df5da183b0 · sha256:1443565ad0872c55… · /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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