CVE-2026-17627CWE-639

CVE-2026-17627

Medium · published September 4, 2026

CVSS v3.1
4.9
EPSS
0%
Percentile
9.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00199 · 9.2th percentile
Weakness
CWE-639 · Authorization Bypass Through User-Controlled Key
Published
2026-09-04T21:16Z
Affected products (1)
ProductVersionsFixed in
langflow/langflow≥ 1.0.0, < 1.10.31.10.3
References (1)
https://www.ibm.com/support/pages/node/7286294 · [email protected]
EPSS history
Timeline
  • 06 SEP 03:30Z
    EPSS moved — → 0%
    epss
  • 04 SEP 16:30Z
    Langflow is affected by improper authorization due to missing access control on the voice-mode WebSocket endpoint
    cvelistv5