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CVE-2026-56775

n8n before 1.123.55, 2.25.7, and 2.26.2 contains an authorization vulnerability in three mutating evaluation test-run endpoints that authorize state-changing actions using the workflow:read scope instead of the action-appropriate workflow:execute scope. On instances using Advanced Permissions (Enterprise/Cloud) with projects and viewer roles, an authenticated user with the project:viewer role can start new evaluation test runs, cancel in-flight runs, and delete run records for workflows they onl
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:428bb4528e829654bb7472b631199d3c36a1a07d13a7afed7d0603b9dcd5b4b3
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":"1.123.55","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.55","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/0

{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.25.7","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.25.7","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/2

{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.26.2","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.26.2","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/1
cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /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":"1.123.55","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"1.123.55","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/0
{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.25.7","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.25.7","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/2
{"defaultStatus":"unaffected","packageURL":"pkg:npm/n8n","product":"n8n","vendor":"n8n","versions":[{"lessThan":"2.26.2","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"2.26.2","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/affected/1

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.4,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/metrics/1/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-863","description":"Incorrect Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"GitHub Security Advisory (GHSA-664h-gpgq-h6xx)","tags":["vendor-advisory"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-664h-gpgq-h6xx"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /containers/cna/references/0
{"name":"VulnCheck Advisory: n8n - Incorrect OAuth Scope Validation in Evaluation Test Runs Endpoints","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/n8n-incorrect-oauth-scope-validation-in-evaluation-test-runs-endpoints"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c190dcc24b77c7d3ca58f8c1be3e1c77a7db08ffdb9ebef580917642dd7858df · sha256:ff8bd1b084021b50… · /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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