CVE-2026-9198
IBM Langflow OSS 1.0.0 through 1.10.0 allows unauthenticated attackers to chain /api/v1/auto_login (mints SUPERUSER tokens to any network caller) with /api/v1/validate/code (executes user code via exec()) to achieve full RCE on default Langflow deployments
Fix
Public exploits 11
- Langflow AI auto_login RCE (exploit module) Metasploit · verified · 2026-07-17
- Langflow 1.10.0 - RCE (webapps · multiple) Exploit-DB · 2026-09-02
- 0xdak/CVE-2026-9198_exploit PoC on GitHub
- 0xgh057r3c0n/CVE-2026-9198 PoC on GitHub
- CuteeCat/CVE-2026-9198 PoC on GitHub
- Procjevt/CVE-2026-9198 PoC on GitHub
- Riftweld/langflow-cve-2026-9198 PoC on GitHub
- chessalekin/cve-2026-9198_exploit PoC on GitHub
- joaovicdev/EXPLOIT-CVE-2026-9198 PoC on GitHub
- rmhowe425/PoC-CVE-2026-9198 PoC on GitHub
- ywh-jfellus/CVE-2026-9198 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
CISA KEV required action · due 2026-08-07
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
Added to the catalog 2026-08-04. CISA KEV
Patch, vendor advisory and mitigation references on NVD 1
- https://www.ibm.com/support/pages/node/7278927 Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · in KEV · langflowNVD modified 2026-10-24 20:10
Affected (CPE criteria) 1
cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
References 2
- https://www.ibm.com/support/pages/node/7278927 Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-9198 US Government Resource