Langflow Authenticated RCE via Code Validation Endpoint
Authenticated remote code execution in Langflow versions 1.0.0 through 1.10.0 via the code validation endpoint. CVSS 9.9 critical; Metasploit module released.
- Vendor
- Langflow
- Product
- Langflow (1.0.0 through 1.10.0)
- CVSS
- 9.9
- EPSS (exploit probability)
- 1.1%
- Status
- patched
- Published
Is CVE-2026-7873 being exploited?
Not on any exploited-vulnerability catalog we track. CVE-2026-7873 was not on the CISA, ENISA or CIRCL exploited catalogs as of our 2026-10-24 snapshot. That can change quickly; check the write-up below for the latest reporting.
FIRST's EPSS model puts the probability of exploitation activity in the next 30 days at 1.1% (scored October 24, 2026).
- CISA KEV[ — ]
- ENISA EUVD (exploited)[ — ]
- CIRCL KEV[ — ]
Catalog snapshot 2026-10-24. Full cross-catalog view: /kev-comparison
CVE-2026-7873 timeline
Every event links to its source. Catalog dates are each catalog's own; day offsets count from NVD publication. Data: JSON
CVE-2026-7873 is an authenticated remote code execution vulnerability in Langflow, the open-source LLM workflow builder. The flaw exists in the code validation endpoint and affects versions 1.0.0 through 1.10.0. A valid user session is required to exploit this vulnerability.
CVSS base score: 9.9 (critical). Rapid7 released a Metasploit exploit module for this CVE in October 2026. Update to a patched release to remediate.
Other Langflow CVEs we track
| CVE / Vulnerability | Severity | CVSS | EPSS | Added to KEV |
|---|---|---|---|---|
| CVE-2026-93674 Langflow Authenticated Blind Command Injectionwrite-up | [ CRITICAL ] | 9.8 | 6.2% | — |
| CVE-2026-10134 Langflow Unauthenticated RCE in Public Flow Build Endpointwrite-up | [ CRITICAL ] | 10.0 | 1.6% | — |
| CVE-2026-0769 Langflow Unauthenticated RCE via Custom Component Evaluationwrite-up | [ CRITICAL ] | 9.8 | 41.2% | — |
| CVE-2026-105740 Authenticated RCE via MCP tool additionwrite-up | [ CRITICAL ] | 9.9 | 0.6% | — |
| CVE-2026-0768 Langflow Unauthenticated RCE via Code Execution Endpointwrite-up | [ CRITICAL ] | 9.8 | 23.1% | — |
| CVE-2026-0770 Langflow validate-endpoint exec_globals RCE (unauthenticated)write-up | [ CRITICAL ] | 9.8 | 62.6% | |
| CVE-2026-55255 Langflow /api/v1/responses IDOR — cross-user flow executionwrite-up | [ HIGH ] | 8.4 | 0.9% | |
| CVE-2025-34291 Langflow CORS misconfiguration enables CSRF-driven token theft and RCEwrite-up | [ HIGH ] | 8.8 | 92.8% |
