Authorization bypass through user-controlled key in Langflow - CVE-2026-33053
Published: March 19, 2026
Vulnerability identifier: #VU124128
CSH Severity: Medium
CVSS v4: 8.7 [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]
CVE-ID: CVE-2026-33053
CWE-ID: CWE-639
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
Langflow
How to mitigate CVE-2026-33053
Install updates from vendor's website.
Langflow - update to 1.7.2