CVE-2026-97673Network attack vectorHinoki check available

Authenticated code execution via improper input validation

Published Oct 7, 2026 · Updated Oct 7, 2026

Improper input validation in IBM Langflow OSS 1.0.0 through 1.12.2 allows remote authenticated users to execute arbitrary code. IBM has not identified the affected input-validation routine or explained how it mishandles attacker-controlled data for this CVE. Exploitation requires an authenticated account with network access to the Langflow service and executes code with the service process's permissions.

CVSS severityUnavailable
Unscored
EPSS probability0.45%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Improper input validation in IBM Langflow OSS 1.0.0 through 1.12.2 allows remote authenticated users to execute arbitrary code. IBM has not identified the affected input-validation routine or explained how it mishandles attacker-controlled data for this CVE. Exploitation requires an authenticated account with network access to the Langflow service and executes code with the service process's permissions.

The record

CVE
CVE-2026-97673
Published
Oct 7, 2026
Updated
Oct 7, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-693
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 7, 2026CVE publishedPublication date reported by the CVE source.
  2. Oct 7, 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 <=1.12.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.12.2

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure

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

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