CVE-2026-79725Network attack vector

Authenticated arbitrary file read via unchecked storage paths

Published Sep 10, 2026 · Updated Sep 10, 2026

Path traversal in IBM Langflow OSS 1.0.0 through 1.11.5 allows remote authenticated users to read arbitrary files through storage paths. The local and S3-backed storage service accepts component-controlled paths without consistently invoking its path-containment guard. A valid account and flow-execution access are required, and disclosure is limited to files readable by the Langflow service process.

CVSS severity6.5
Medium
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in IBM Langflow OSS 1.0.0 through 1.11.5 allows remote authenticated users to read arbitrary files through storage paths. The local and S3-backed storage service accepts component-controlled paths without consistently invoking its path-containment guard. A valid account and flow-execution access are required, and disclosure is limited to files readable by the Langflow service process.

The record

CVE
CVE-2026-79725
Published
Sep 10, 2026
Updated
Sep 10, 2026
Vendor
IBM
Product
Langflow OSS
Classifications
CWE-284, T1005
Attack vector
network
Privileges
authenticated

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 privilegesauthenticated

What is affected?

IBM · Langflow OSSversion=1.0.0 <=1.11.5

Published CVSS scores

6.5IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1005Data from Local System

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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