CVE-2026-17624Network attack vectorHinoki check available

Authenticated code execution via unchecked module imports

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 arbitrary Python code. Module-import validation across code scanning, runtime validation, component generation, and custom-component execution fails to reject crafted imports before backend execution. A valid account and a crafted component that evades the import checks are required; code runs with the Langflow backend process's privileges.

CVSS severity8.5
High
EPSS probability0.38%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
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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 arbitrary Python code. Module-import validation across code scanning, runtime validation, component generation, and custom-component execution fails to reject crafted imports before backend execution. A valid account and a crafted component that evades the import checks are required; code runs with the Langflow backend process's privileges.

The record

CVE
CVE-2026-17624
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

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5IBMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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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