critical9.8Known exploitedPublic exploit code
CVE-2026-33017
Unauthenticated Remote Code Execution in Langflow via Public Flow Build Endpoint
Exploited in the wild
This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-03-25. Federal due date: 2026-04-08.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Public exploit code
Working exploit or proof of concept code has been published for this vulnerability. Treat unpatched systems as at risk.
- Langflow 1.9.0 - RCE2026-07-08 · webapps · multiple
Impact
Langflow contains a code injection vulnerability that could allow building public flows without requiring authentication.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | langflow | <= 1.8.2 | 1.9.0 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Langflow | Langflow | before 1.8.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- CISA KEV catalog
- https://github.com/advisories/GHSA-rvqx-wpfh-mfx7
- https://github.com/langflow-ai/langflow/commit/73b6612e3ef25fdae0a752d75b0fabd47328d4f0
- https://github.com/langflow-ai/langflow/security/advisories/GHSA-vwmf-pq79-vjvx
- https://github.com/langflow-ai/langflow/releases/tag/1.8.2
- https://medium.com/@aviral23/cve-2026-33017-how-i-found-an-unauthenticated-rce-in-langflow-by-reading-the-code-they-already-dc96cdce5896
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-33017
- https://www.sysdig.com/blog/cve-2026-33017-how-attackers-compromised-langflow-ai-pipelines-in-20-hours
- https://github.com/advisories/GHSA-vwmf-pq79-vjvx
- https://nvd.nist.gov/vuln/detail/CVE-2026-33017
- https://github.com/langflow-ai/langflow/pull/12160
- https://github.com/langflow-ai/langflow/issues/12345
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-33017