CVE-2026-86993 PUBLISHED

n8n: Log Streaming Event Destinations Decrypt Generic-Auth Credentials Without Ownership Check

Assigner: GitHub_M
Reserved: 08.09.2026 Published: 08.09.2026 Updated: 08.09.2026

n8n is an open source workflow automation platform. Prior to 1.123.76, 2.37.7, and 2.38.2, a Log Streaming event destination could reference a generic HTTP credential and decrypt whichever credential ID it named without an ownership check. A user with a custom global role carrying Log Streaming scopes could select a credential belonging to another project and send its decrypted secret to an attacker-controlled endpoint. The affected authorization boundary is packages/cli/src/modules/log-streaming.ee/destinations/destination-credentials-access.ts and the credential:read scope. This issue is fixed in versions 1.123.76, 2.37.7 and 2.38.2.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N
CVSS Score: 5.9

Product Status

Vendor n8n-io
Product n8n
Versions
  • Version >= 2.38.0, < 2.38.2 is affected
  • Version >= 2.0.0, < 2.37.7 is affected
  • Version < 1.123.76 is affected

References

Problem Types

  • CWE-862: Missing Authorization CWE