CVE-2026-9201: IBM Langflow OSS 1.0.0 through 1.10.3 could allow an authenticated attacker to execute arbitrary code due to a cryptogra
Summary
IBM Langflow OSS versions 1.0.0 through 1.10.3 have a security flaw in how they validate custom components when hardening mode is enabled. An authenticated attacker can exploit a cryptographic weakness (truncated SHA-256 hash, a shortened version of a security fingerprint) to create malicious code that appears to match trusted templates, allowing them to run arbitrary Python code and potentially take over the affected system.
Vulnerability Details
8.8(high)
EPSS: 0.2%
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
network
low
low
none
August 5, 2026
Classification
Affected Vendors
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Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-9201
First tracked: August 6, 2026 at 02:08 PM
Classified by LLM (prompt v3) · confidence: 92%