CVE-2026-9196Network attack vector

Authenticated Python execution via pre-approval validation

Published Aug 5, 2026 · Updated Aug 5, 2026

Code injection in IBM Langflow OSS 1.0.0 through 1.10.3 allows remote authenticated users to execute Python during Agentic Assistant validation. The validation path treats LLM-generated component text as trusted code and executes it in the backend before approval. Access to the Agentic Assistant and influence over model output are required, and execution can read files, contact network services, or exfiltrate data as the backend process.

CVSS severity8.1
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in IBM Langflow OSS 1.0.0 through 1.10.3 allows remote authenticated users to execute Python during Agentic Assistant validation. The validation path treats LLM-generated component text as trusted code and executes it in the backend before approval. Access to the Agentic Assistant and influence over model output are required, and execution can read files, contact network services, or exfiltrate data as the backend process.

The record

CVE
CVE-2026-9196
Published
Aug 5, 2026
Updated
Aug 5, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-94, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 5, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=1.10.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.10.3

Published CVSS scores

8.1IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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