IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
IBM Langflow OSS affected
Version Status Constraints
1.0.0 affected ≤ 1.9.3

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Project Subscriptions

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.9.4 https://pypi.org/project/langflow/

Workaround

No workaround given by the vendor.

References
Link Providers
https://www.ibm.com/support/pages/node/7277242 cve-icon
History

Mon, 22 Jun 2026 13:45:00 +0000

Type Values Removed Values Added
Description IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise
Title Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
First Time appeared Ibm
Ibm langflow Oss
Weaknesses CWE-94
CPEs cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:langflow_oss:1.9.3:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm langflow Oss
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-06-22T13:22:07.628Z

Reserved: 2026-06-01T15:41:38.211Z

Link: CVE-2026-10561

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-22T14:30:05Z

Weaknesses