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Critical · 9.8 Known exploited Scanner template Public exploit CVE-2026-9198 EUVD-2026-45236GHSA-5wm9-vgmg-cjv6

Unauthenticated Remote Code Execution via Auto-Login Bypass and Code Validation

Published Jul 17, 2026 · Updated Aug 17, 2026 · Assigned by ibm

Vendor: IBM Product: Langflow OSS

Description

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

Affected products

VendorProductAffectedFixed
IBM Langflow OSS 1.0.0 – ≤ 1.10.0 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

Metasploit 1 module

Exploit-DB 1

GitHub 10 repositories

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Automated scanner template

A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.

Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.

Advisories 2

References