CVE-2026-55255 CISA KEV · Actively exploited
Langflow: IDOR Vulnerability in `/api/v1/responses` Endpoint Allows Authenticated Attackers to Access Another User's Flow
CVSS score
8.4
EPSS probability
%0.9
Risk score
0.1
Published
3 mo ago
Vulnerability Timeline (Change History)
CVE-2026-55255 historical changes made to the vulnerability by NVD, CISA and MITRE:
| Date | Actor / Source | Action / Description | Type | Previous value | New value |
|---|---|---|---|---|---|
| 07.10.2026 | nvd@nist.gov | Initial Analysis & CVSS Vector Assignment | CVSS V3.1 | — | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:L |
| 07.07.2026 | CISA Coordinator | Added to KEV Catalog (Active Exploitation) | SSVC / KEV | exploitation: none | exploitation: active |
| 23.06.2026 | MITRE / NVD | New CVE Record Received & Ingested | CVE Created | — | CVE-2026-55255 |
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