CVE-2026-85171

n8n before 1.123.73 Credential Exposure via Error Logging

State: Published
Severity: 7.1 High
Published: Sep 3, 2026
Updated: Oct 29, 2026
Reserved: Sep 3, 2026

Description

n8n before 1.123.73, 2.35.4, and 2.36.2 contains a credential exposure vulnerability in the Strapi, SeaTable, and Mailcheck nodes. These nodes send their decrypted credentials to the authentication endpoint via the raw legacy HTTP helper outside any error handling, causing the plaintext secret to be persisted in execution error data. Any authenticated user can read the plaintext secret from their own execution through the REST API, bypassing the blank-value redaction enforced by the credentials API.

Scores

CVSS	Score	Vector	Source
4.0	7.1 High	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N	VulnCheck

Weaknesses

CWE-532 Insertion of Sensitive Information into Log File

Affected Products

Product	Versions
n8nn8n-io	before 1.123.73Affected 1.123.73Not affected
n8nn8n-io	2.36.0 to before 2.36.2Affected 2.36.2Not affected
n8nn8n-io	2.0.0-rc.0 to before 2.35.4Affected 2.35.4Not affected

References

GitHub Security Advisory (GHSA-vrv8-j27g-g7cr)vendor-advisory
VulnCheck Advisory: n8n before 1.123.73 Credential Exposure via Error Loggingthird-party-advisory

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