Code Injection in Langflow Desktop - CVE-2026-6543
Published: May 1, 2026
Vulnerability identifier: #VU128853
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-2026-6543
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote user can send a specially crafted request and read sensitive environment variables (API keys, DB credentials), modify files, or launch further attacks on the internal network.
Affected software
Langflow Desktop
How to mitigate CVE-2026-6543
Install updates from vendor's website.
Langflow Desktop - update to 1.9.0