CVE-2026-17627 json
Langflow is affected by improper authorization due to missing access control on the voice-mode WebSocket endpoint
published 2026-09-04 2 mo ago modified 2026-09-09 2 mo ago also EUVD-2026-71466
- cvss
- 4.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.9 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N |
Affected products
- IBM Langflow OSS
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
ibm.com
/support/pages/node/7286294
vendor-advisory, patch
Sources
- CVE List CVE-2026-17627
- NVD CVE-2026-17627
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