CVE-2026-10140

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

CVSS 9.6 CRITICALCWE-639

Vexday Risk Score

25Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 9.6EPSS —KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

30 Jun 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Affected products

IBM · Langflow OSS

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References

https://www.ibm.com/support/pages/node/7278209