CVE-2026-19298: IBM Langflow OSS 1.0.0 through 1.11.2 could allow a remote authenticated attacker to execute arbitrary code due to an au
Summary
IBM Langflow OSS (open-source software) versions 1.0.0 through 1.11.2 has a security flaw where an authenticated attacker (someone with login credentials) could run arbitrary code (any commands they want) by bypassing authorization checks (security rules that prevent unauthorized actions) in the flow build process (the system that constructs automated workflows).
Vulnerability Details
8.8(high)
EPSS: 0.0%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
network
low
low
none
September 4, 2026
Classification
Taxonomy References
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-19298
First tracked: September 4, 2026 at 02:08 PM
Classified by LLM (prompt v3) · confidence: 92%