CVE-2026-10140 json
Cross-Tenant API Key Reuse and Billing Fraud in Langflow Voice Mode Subsystem
published 4mo ago modified 15d ago also EUVD-2026-40403
- cvss
- 9.6
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- ibm.com/support/pages/node/7278209 advisory
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.6 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N |
Affected products
- IBM Langflow OSS
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
ibm.com
/support/pages/node/7278209
vendor-advisory, patch
Sources
- CVE List CVE-2026-10140
- NVD CVE-2026-10140
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