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IBM Langflow CVE-2026-14499

| EUVDEUVD-2026-45306 HIGH
OS Command Injection (CWE-78)
2026-07-17 psirt@us.ibm.com GHSA-q4fv-x4j4-jx84
8.8
CVSS 3.1 · Vendor: us
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Severity by source

Vendor (us) PRIMARY
8.8 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vuln.today AI
8.8 HIGH

Network-reachable app requiring a valid low-privilege account (PR:L) and no user interaction; command injection yields full host code execution, so C/I/A all High.

3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (us).

CVSS VectorVendor: us

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Jul 17, 2026 - 20:36 vuln.today
CVE Published
Jul 17, 2026 - 20:17 nvd
HIGH 8.8

DescriptionCVE.org

IBM Langflow OSS 1.0.0 through 1.10.1 Langflow could allow an authenticated user to execute arbitrary commands with elevated privileges on the system due to improper validation of user supplied input in the Python Interpreter component.

AnalysisAI

OS command injection in IBM Langflow OSS versions 1.0.0 through 1.10.1 lets an authenticated user run arbitrary system commands with elevated privileges by abusing improper input validation in the Python Interpreter component. Because the flaw sits in a feature that already executes user-supplied Python, any logged-in user can escalate to full host command execution (CVSS 8.8, CWE-78). …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Authenticate to Langflow with valid account
Delivery
Craft input for Python Interpreter component
Exploit
Inject OS command via unvalidated input
Execution
Command executes at service privilege
Impact
Full host compromise

Vulnerability AssessmentAI

Exploitation Exploitation requires an authenticated Langflow account (CVSS PR:L) and the ability to reach and use the Python Interpreter component within a flow - that specific component is the vulnerable feature named in the description. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 3.1 vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (8.8, High) indicates a network-reachable attack with low complexity, requiring only low privileges (an authenticated but not necessarily administrative account), no user interaction, and full confidentiality/integrity/availability impact - a strong risk profile. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker who has obtained any valid Langflow account - through self-registration, weak credentials, or a compromised low-privilege user - builds or edits a flow that uses the Python Interpreter component and supplies crafted input containing OS command syntax. When the flow runs, the injected commands execute in the host shell at the Langflow service's privilege level, giving the attacker command execution and potential full host compromise. …
Remediation Consult the IBM advisory at https://www.ibm.com/support/pages/node/7279996 for the vendor's fixed release and upgrade to the patched version above 1.10.1 once identified - the input data did not include an exact fix version, so verify the target version directly from that advisory before deploying. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours: identify all Langflow deployments in your environment, document their versions, and audit access controls to determine which users have authentication capabilities. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-14499 vulnerability details – vuln.today

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