IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Ibm
  • Langflow Oss

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Vendors Products
References
Link Providers
https://www.ibm.com/support/pages/node/7277996 cve-icon
History

Tue, 30 Jun 2026 20:15:00 +0000

Type Values Removed Values Added
Description IBM Langflow OSS 1.0.0 through 1.9.6 contains a missing authentication vulnerability in /api/v1/build_public_tmp/ endpoints that allows an unauthenticated attacker to read build event data or cancel jobs using a valid job identifier, resulting in information disclosure and denial of service.
Title Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS
First Time appeared Ibm
Ibm langflow Oss
Weaknesses CWE-287
CPEs cpe:2.3:a:ibm:langflow_oss:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:langflow_oss:1.9.6:*:*:*:*:*:*:*
Vendors & Products Ibm
Ibm langflow Oss
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: ibm

Published:

Updated: 2026-06-30T19:53:20.632Z

Reserved: 2026-06-01T15:10:29.825Z

Link: CVE-2026-10560

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-30T21:30:17Z