CVE-2026-12944Network attack vectorHinoki check available

Authenticated code execution via incomplete import blocklist

Published Sep 14, 2026 · Updated Sep 14, 2026

Code injection in IBM Langflow OSS 1.0.0 through 1.10.0 allows remote authenticated users to execute Python code during component validation. The code security scanner omits socket and urllib from DANGEROUS_IMPORTS, so module-level network calls run server-side while validation returns validated true. An authenticated component submission can access cloud metadata, container files, and internal Docker-network services with the server process's privileges.

CVSS severity9.6
Critical
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Code injection in IBM Langflow OSS 1.0.0 through 1.10.0 allows remote authenticated users to execute Python code during component validation. The code security scanner omits socket and urllib from DANGEROUS_IMPORTS, so module-level network calls run server-side while validation returns validated true. An authenticated component submission can access cloud metadata, container files, and internal Docker-network services with the server process's privileges.

The record

CVE
CVE-2026-12944
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-918, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0 <=1.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.10.0

Published CVSS scores

9.6IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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-918Server-Side Request Forgery (SSRF)
T1059.006Command and Scripting Interpreter: Python

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo