CVE-2026-76059Network attack vector

Arbitrary command execution via annotated assignment bypass

Published Sep 10, 2026 · Updated Sep 10, 2026

Code injection in IBM Langflow OSS 1.0.0 through 1.11.5 allows attackers to execute operating system commands through custom component source code. The static security scanner resolves an annotated class-body assignment through alias tracking but fails to compare the resolved callable with its dangerous-callable blocklist. Exploitation requires the ability to submit custom component source and reach its runtime path, after which commands run in-process with the Langflow service's privileges.

CVSS severityUnavailable
Unscored
EPSS probability0.47%
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 1.11.5 allows attackers to execute operating system commands through custom component source code. The static security scanner resolves an annotated class-body assignment through alias tracking but fails to compare the resolved callable with its dangerous-callable blocklist. Exploitation requires the ability to submit custom component source and reach its runtime path, after which commands run in-process with the Langflow service's privileges.

The record

CVE
CVE-2026-76059
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
T1059
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 10, 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 <=1.11.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.11.5

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.

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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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1059Command and Scripting Interpreter

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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Your stack

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