Information Exposure Affecting n8n package, versions <2.33.4-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.29% (22nd percentile)

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  • Snyk IDSNYK-MINIMOSLATEST-N8N-19502801
  • published3 Sept 2026
  • disclosed20 Aug 2026

Introduced: 20 Aug 2026

NewCVE-2026-77076  (opens in a new tab)
CWE-209  (opens in a new tab)

How to fix?

Upgrade Minimos:latest n8n to version 2.33.4-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream n8n package and not the n8n package as distributed by Minimos. See How to fix? for Minimos:latest relevant fixed versions and status.

n8n versions before 1.123.69, 2.33.4, and 2.34.1 contain an information disclosure vulnerability in the GraphQL node. When a GraphQL request fails at the connection level, the node re-throws the underlying HTTP client error unchanged instead of wrapping it in n8n's standard error type. That error contains the live request's headers, including a decrypted credential secret, which the execution engine persists verbatim. Any authenticated user able to read the resulting execution can retrieve the decrypted credential secret from the stored run data.

CVSS Base Scores

version 3.1