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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-77076 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  VulnCheck
CVSS-B 7.1 HIGH
Vector:  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

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://github.com/n8n-io/n8n/security/advisories/GHSA-9fqj-7wc5-cwhx VulnCheck
https://www.vulncheck.com/advisories/n8n-before-credential-leak-via-graphql-node-error VulnCheck

Weakness Enumeration

CWE-ID CWE Name Source
CWE-209 Generation of Error Message Containing Sensitive Information VulnCheck  

Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-77076
NVD Published Date:
08/20/2026
NVD Last Modified:
08/21/2026
Source:
VulnCheck