CVE-2026-9198Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via superuser token minting

Published Jul 17, 2026 · Updated Jul 17, 2026

Code injection in IBM Langflow OSS 1.0.0 through 1.10.0 allows remote attackers to execute code through its unauthenticated API. The /api/v1/auto_login endpoint issues a SUPERUSER token to any network caller, and /api/v1/validate/code passes supplied Python to exec(). The chain requires network access to a default deployment and runs Python with the Langflow service process's privileges.

CVSS severity9.8
Critical
EPSS probability60.60%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in IBM Langflow OSS 1.0.0 through 1.10.0 allows remote attackers to execute code through its unauthenticated API. The /api/v1/auto_login endpoint issues a SUPERUSER token to any network caller, and /api/v1/validate/code passes supplied Python to exec(). The chain requires network access to a default deployment and runs Python with the Langflow service process's privileges.

The record

CVE
CVE-2026-9198
Published
Jul 17, 2026
Updated
Jul 17, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-94, T1190, T1059.006
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 17, 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 <=1.10.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.10.0

Published CVSS scores

9.8IBMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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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
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application
T1059.006Python

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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