Langflow PythonFunction Code Injection Remote Code Execution Vulnerability
Published Jan 23, 2026
7.1
HIGHCVSS 3.0
EPSS 0.64%
Description
Langflow PythonFunction Code Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Langflow. Attack vectors and exploitability will vary depending on the configuration of the product.
The specific flaw exists within the handling of Python function components. Depending upon product configuration, an attacker may be able to introduce custom Python code into a workflow. An attacker can leverage this vulnerability to execute code in the context of the application. Was ZDI-CAN-27497.
Affected products
-
- Version 1.4.2StatusaffectedConstraints-
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Jan 24, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
Jan–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.64% (0.00636) | 48.65th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.60% (0.00599) | 43.81th | v5 (v2026.06.15) |
| Jan 23, 2026 | 0.20% (0.00199) | 42.00th | v4 (v2025.03.14) |
References (1)
- https://www.zerodayinitiative.com/advisories/ZDI-26-037/ x_research-advisoryThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-26-037/ | x_research-advisoryThird Party Advisory |
Change history (0)
No recorded changes yet.