by Kastro
Paper/Archive/CVE-2026-10140

CVE-2026-10140

IBM Langflow OSS — Cross-Tenant API Key Reuse and Billing Fraud in Langflow Voice Mode Subsystem

EPSS 0.4%CVSS 9.6
critical.is priorityof 100
35
CVSS 9.6 (CNA)9.6 / 10 × 3028.8Not in CISA KEV+300.0EPSS percentile 28.6.286 × 205.7No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

IBM Langflow OSS 1.0.0 through 1.10.0 voice mode contains improper shared-state handling that allows reuse of API clients across tenant boundaries. An authenticated attacker can manipulate cache state to cause requests from other users to be processed using incorrect upstream API credentials, leading to cross-tenant billing and accountability misattribution.

Affected

ProductAffectedFixed inSource
Langflow OSS1.0.0 – 1.10.0–CNA

Scores by source

ibm (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

patchibm.com/support/pages/node/7278209