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CVE-2026-33751

n8n is an open source workflow automation platform. Prior to versions 1.123.27, 2.13.3, and 2.14.1, a flaw in the LDAP node's filter escape logic allowed LDAP metacharacters to pass through unescaped when user-controlled input was interpolated into LDAP search filters. In workflows where external user input is passed via expressions into the LDAP node's search parameters, an attacker could manipulate the constructed filter to retrieve unintended LDAP records or bypass authentication checks imple
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:7aabe9e8fb14dfddc190026ab6704897f051123198e536dae319b789abb9f821
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"n8n","vendor":"n8n-io","versions":[{"status":"affected","version":"< 1.123.27"},{"status":"affected","version":">= 2.0.0-rc.0, < 2.13.3"},{"status":"affected","version":"= 2.14.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:a516ca1dfc857278dbedf67df6ce0c74510ef1fc2bcbb51d0bed814e29143c0d · sha256:2f934cec471fb639… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":6.3,"baseSeverity":"MEDIUM","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/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:a516ca1dfc857278dbedf67df6ce0c74510ef1fc2bcbb51d0bed814e29143c0d · sha256:2f934cec471fb639… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-90","description":"CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:a516ca1dfc857278dbedf67df6ce0c74510ef1fc2bcbb51d0bed814e29143c0d · sha256:2f934cec471fb639… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"name":"https://github.com/n8n-io/n8n/security/advisories/GHSA-w83q-mcmx-mh42","tags":["x_refsource_CONFIRM"],"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-w83q-mcmx-mh42"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:a516ca1dfc857278dbedf67df6ce0c74510ef1fc2bcbb51d0bed814e29143c0d · sha256:2f934cec471fb639… · /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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