SB2026020965 - Information disclosure in n8n
Published: February 9, 2026 Updated: February 13, 2026
Security Bulletin ID
SB2026020965
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Information disclosure (CVE-ID: CVE-2026-21858)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a logic error in certain form-based workflows. A remote non-authenticated attacker can view contents of files on the server.
Remediation
Install update from vendor's website.