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CVE-2026-103256

n8n before 2.39.6 and 2.40.x before 2.40.1 Credentials Leak via preAuthentication Hook PUBLISHED

Description (CNA)

n8n versions before 2.39.6 and 2.40.0 before 2.40.1 contain a credentials leak vulnerability in the Wekan and Baserow username-and-password credentials that sends unencrypted passwords to unvalidated hosts. Attackers with credential update permissions can modify the host field to receive account passwords at arbitrary hosts, bypassing domain validation controls.

Affected (CNA)

Vendor / productVersions
n8n-io / n8naffected 0 before 2.39.6; affected 2.40.0 before 2.40.1

CWE

CWE-522

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.