CVE-2024-42835

langflow has vulnerability in PythonCodeTool component

9.8 Critical

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

1.16%Up 1.1 points since Nov 1, 2024

What each source reports

CVE List Score used 9.8

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: CVE-2024-42835
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

EUVDEUVD-2024-2942 9.8

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: EUVD-2024-2942
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-56m6-4mhw-h3g5 8.2

langflow has vulnerability in PythonCodeTool component

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: GHSA-56m6-4mhw-h3g5
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

NVD 9.8

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: CVE-2024-42835
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSV 9.8

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: CVE-2024-42835
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVGHSA-56m6-4mhw-h3g5 8.2

langflow has vulnerability in PythonCodeTool component

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: GHSA-56m6-4mhw-h3g5
CVSS 4.0: 8.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

OSVPYSEC-2024-279 9.8

langflow v1.0.12 was discovered to contain a remote code execution (RCE) vulnerability via the PythonCodeTool component.

Record: PYSEC-2024-279
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

langflow

Affected packages

Affected packages
Package	Affected	Fixed
`langflow` PyPI	through 1.0.12	None known
`langflow` PyPI	through 1.0.12, plus listed versions 0.0.310.0.320.0.330.0.400.0.44 Show 45 moreShow less 0.0.450.0.460.0.520.0.530.0.540.0.550.0.560.0.570.0.580.0.610.0.620.0.630.0.640.0.650.0.660.0.670.0.680.0.690.0.700.0.710.0.720.0.730.0.740.0.750.0.760.0.780.0.790.0.800.0.810.0.830.0.840.0.850.0.860.0.870.0.880.0.890.1.00.1.20.1.30.1.40.1.50.1.60.1.70.2.00.2.1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2024-42835 is a critical vulnerability (CVSS 9.8) in Langflow, published October 31, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.16%, the 67th percentile. No source names a fixed version.

References

This page doesn't list everything

Left out here: 186 versions. The JSON record has them.