CVE-2026-76059: IBM Langflow OSS 1.0.0 through 1.11.5 An attacker who could submit custom component source code could bypass the static
Summary
IBM Langflow OSS (open-source software) versions 1.0.0 through 1.11.5 has a vulnerability where an attacker can upload malicious custom component code that tricks the static security scanner (a tool that checks code before it runs) by using alias tracking (following variable names to their actual values). Because of a logic error, the dangerous code is never checked against a blocklist of forbidden operations, allowing the attacker to execute arbitrary operating system commands on the server with the privileges of the running service.
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 10, 2026
Classification
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-76059
First tracked: September 10, 2026 at 08:08 PM
Classified by LLM (prompt v3) · confidence: 95%