SB2026031930 - Authorization bypass through user-controlled key in Langflow
Published: March 19, 2026
Security Bulletin ID
SB2026031930
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Authorization bypass through user-controlled key (CVE-ID: CVE-2026-33053)
CWE-ID: CWE-639 - Authorization Bypass Through User-Controlled Key
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing ownership verification in API key deletion. A remote user can enumerate and delete API keys belonging to other users, leading to account takeover.
Remediation
Install update from vendor's website.