CVE-2026-10547

EUVD-2026-53551
IBM Langflow OSS 1.0.0 through 1.10.3 does not properly validate ownership in the deprecated POST /api/v1/build/{flow_id}/vertices endpoint, allowing an authenticated user to inject arbitrary graph data into a shared cache for any flow. This may result in cross-user cache pollution, unauthorized workflow execution, or denial of service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: 13.48%
Affected Products (NVD)
VendorProductVersion
langflowlangflow
1.0.0 ≤
𝑥
< 1.11.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://www.ibm.com/support/pages/node/7282647