CVE-2026-10560

HIGH

Unauthenticated Access to Private Flow Build Events and Cancellation in Langflow OSS

Title source: cna
STIX 2.1

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.

References (1)

Core 1
Core References
Vendor Advisory vendor-advisory patch
https://www.ibm.com/support/pages/node/7277996

Scores

CVSS v3 8.2
EPSS 0.0027
EPSS Percentile 19.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-287
Status published
Products (2)
IBM/Langflow OSS 1.0.0 - 1.9.6
langflow/langflow 1.0.0 - 1.9.6
Published Jun 30, 2026
Tracked Since Jul 01, 2026