Technology · PyPI
langflow (PyPI) vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 32 vulnerabilities in langflow (PyPI): 0 in the last 7 days and 5 in the last 90 days, 12 of them critical and 5 exploited in the wild. The most recent, CVE-2026-21445, was published on 13 July 2026.
- Last 7 days
- 0
- Last 90 days
- 5
- Critical, all time
- 12
- Exploited in the wild
- 5
About langflow (PyPI)
Python framework for building visual AI applications with component-based workflows.
Latest langflow (PyPI) vulnerabilities
- CVE-2026-21445: PYSEC-2026-2571 - Langflow Missing Authentication on Critical API EndpointsmediumCVSS 4EPSS 33.7%
- CVE-2025-68477: PYSEC-2026-1522 - Langflow vulnerable to Server-Side Request ForgerylowCVSS 3.1EPSS 6.3%
- CVE-2025-57760: PYSEC-2026-1526 - Langflow Vulnerable to Privilege Escalation via CLI Superuser Creation (Post-RCE)lowCVSS 3.1EPSS 0.5%
- CVE-2024-48061: PYSEC-2026-1523 - Langflow vulnerable to remote code executionlowCVSS 3.1EPSS 1.5%
- CVE-2024-9277: PYSEC-2026-1521 - Inefficient Regular Expression Complexity in langflowlowCVSS 3.1EPSS 1.0%
- CVE-2026-27966: PYSEC-2026-376 - Langflow has Remote Code Execution in CSV AgentlowCVSS 3.1EPSS 2.5%
- CVE-2025-3248: PYSEC-2026-380 - Langflow Unauth RCEcriticalexploited in the wildCVSS 4EPSS 100.0%
- CVE-2026-55450: Langflow unauthenticated file upload and path disclosure in upload endpointcriticalCVSS 9.3EPSS 1.2%
- CVE-2026-55447: Langflow arbitrary file read and RCE via symlink following in BaseFileComponentcriticalCVSS 9.6EPSS 0.7%
- CVE-2026-55446: Langflow unauthenticated denial of service in file uploadhighCVSS 7.5EPSS 0.6%
- CVE-2026-55423: Langflow insufficient session expiration in logout mechanismmediumCVSS 6.1EPSS 0.2%
- CVE-2026-55255: Langflow IDOR in responses endpoint allows cross-user flow executioncriticalexploited in the wildCVSS 9.9EPSS 0.9%
- CVE-2026-48520: Langflow arbitrary file read in Shareable PlaygroundmediumCVSS 6.1EPSS 0.4%
- CVE-2026-48519: Langflow RCE in Shareable Playground via Public Flows APIcriticalCVSS 9.6EPSS 0.8%
- CVE-2026-42867: Langflow path traversal in Knowledge Bases APImediumCVSS 6.5EPSS 0.5%
- CVE-2026-33760: Langflow IDOR in monitor API endpointshighCVSS 8.8EPSS 0.5%
- CVE-2026-42048: Langflow path traversal in Knowledge Bases API bulk deletecriticalCVSS 9.6EPSS 0.6%
- CVE-2026-6598: Langflow: Cleartext Storage of Authentication Settings in Project Creation EndpointmediumCVSS 4.3EPSS 0.2%
- CVE-2026-6599: Langflow vulnerable to injectionmediumCVSS 6.3EPSS 0.4%
- CVE-2026-6597: Langflow has an Information Leak through Incomplete API Key RedactionlowCVSS 3.1EPSS 0.4%
- CVE-2026-34046: Langflow authorization bypass in flow management APIhighCVSS 8.8EPSS 0.7%
- CVE-2026-33873: Langflow authenticated code execution in Agentic Assistant validationcriticalCVSS 4EPSS 1.8%
- CVE-2026-33497: Langflow path traversal in profile picture endpointhighCVSS 4EPSS 2.0%
- CVE-2026-33484: Langflow unauthenticated IDOR in image download endpointhighCVSS 7.5EPSS 0.6%
- CVE-2026-33017: Langflow unauthenticated remote code execution in build_public_tmp endpointcriticalexploited in the wildCVSS 9.8EPSS 24.8%
Most severe langflow (PyPI) vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-55255: Langflow IDOR in responses endpoint allows cross-user flow executioncriticalexploited in the wildCVSS 9.9EPSS 0.9%
- CVE-2026-0770: Langflow remote code execution in validate endpointcriticalexploited in the wildCVSS 9.8EPSS 63.8%
- CVE-2026-33017: Langflow unauthenticated remote code execution in build_public_tmp endpointcriticalexploited in the wildCVSS 9.8EPSS 24.8%
- CVE-2025-34291: Langflow CORS misconfiguration enables Account Takeover and RCEcriticalexploited in the wildCVSS 8.8EPSS 92.8%
- CVE-2025-3248: PYSEC-2026-380 - Langflow Unauth RCEcriticalexploited in the wildCVSS 4EPSS 100.0%
- CVE-2026-33309: Langflow path traversal and arbitrary file write in v2 APIcriticalCVSS 9.9EPSS 1.1%
- CVE-2024-42835: Langflow remote code execution in PythonCodeToolcriticalCVSS 9.8EPSS 1.2%
- CVE-2026-48519: Langflow RCE in Shareable Playground via Public Flows APIcriticalCVSS 9.6EPSS 0.8%
- CVE-2026-55447: Langflow arbitrary file read and RCE via symlink following in BaseFileComponentcriticalCVSS 9.6EPSS 0.7%
- CVE-2026-42048: Langflow path traversal in Knowledge Bases API bulk deletecriticalCVSS 9.6EPSS 0.6%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 6 Jul 2026 | 4 | 0 | |
| 13 Jul 2026 | 1 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/pypi-langflow.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "langflow (PyPI) vulnerabilities", https://junglewise.ai/threats/technologies/pypi-langflow, 28 September 2026.