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CVE-2026-56778

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to retry executions of that workflow, bypassing the intended permission boundary between read and execute access. This affects instances where workflows are shared with other users or across projects.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:903778b62193af580590e2ae729ed845760e9e9184fa7dc193a2388de15dd313
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
2

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"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:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/affected/1

{"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:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/affected/0
cvss · 2 assertions

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

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/metrics/0/cvssV4_0

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/metrics/1/cvssV3_1

Affected products and versions

2 source assertions
{"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:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/affected/1
{"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:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","privilegesRequired":"LOW","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/metrics/0/cvssV4_0
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":6.4,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /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:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"GitHub Security Advisory (GHSA-h3jj-5f3v-3685)","tags":["vendor-advisory"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-h3jj-5f3v-3685"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /containers/cna/references/0
{"name":"VulnCheck Advisory: n8n - Authorization Bypass in Public API Execution Retry Endpoint","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/n8n-authorization-bypass-in-public-api-execution-retry-endpoint"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:38ffa7c72e536c23e7eae494a66f3748171c7b7fd08247db9d57efcea2f57f5d · sha256:2f52c6c2e7f589c6… · /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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