CVE-2026-104308

Langflow OSS is affected by multiple vulnerabilities

Published Oct 29, 2026 CVSS 3.1 · 4.3 Medium EPSS < 1% KEV · Not listed
Description
IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to cause a denial of service due to improper neutralization of special elements used in an OS command.

Remediation

Vendor Solution

IBM strongly recommends addressing the vulnerability now by upgrading Langflow OSS to version 1.12.4. https://pypi.org/project/langflow/1.12.4/ For Langflow OSS versions 1.0.0 - 1.12.3, follow the Prepare to upgrade instructions and release-specific configuration changes https://docs.langflow.org/release-notes , including backing up your existing installation, then follow the Langflow OSS installation instructions https://docs.langflow.org/get-started-installation to install version 1.12.4 and test your flows.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Langflow
Langflow langflow
CPEs cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*
Vendors & Products Langflow
Langflow langflow
Type Values Removed Values Added
Description IBM Langflow OSS 1.0.0 through 1.12.3 could allow a remote authenticated attacker to cause a denial of service due to improper neutralization of special elements used in an OS command.
Title Langflow OSS is affected by multiple vulnerabilities
First Time appeared Ibm
Ibm langflow Oss
Weaknesses CWE-78
CPEs cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:langflow_oss:1.12.3:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm langflow Oss
References
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
ibm
Published
Updated
Nov 4, 2026, 1:22 AM
Reserved
Oct 1, 2026, 7:22 PM
Status
Analyzed
Published
Oct 29, 2026, 4:17 PM
Modified
Nov 4, 2026, 2:17 AM