KEV Entry

CVE-2026-56271

Known Exploited Vulnerability Entry Previdian

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Entry Details
Confirmed Exploited

CVE-2026-56271

2026-09-22 11:32 UTC

Timestamps

2026-09-22

2026-09-22

Scope

Flowise - Weak Default JWT Secrets in Authentication Middleware | Affected: Flowise / Flowise | CVSS: 9.3 (CRITICAL) | EPSS: 0.00655 | Used in malware: unknown | Not yet in CISA KEV: True

References
  • {'id': 'CVE-2026-56271', 'url': 'https://www.cve.org/CVERecord?id=CVE-2026-56271'}
  • {'id': 'previdian', 'url': 'https://previdian.com/CVE-2026-56271'}

c475aef5-3c41-4e5b-812a-04ffc644aabe

Previdian
caeb2787-0d58-4236-9039-7c86c3e566f3

2026-09-23 12:00 UTC

2026-09-23 12:00 UTC

Evidence
1
Type Source Signal Confidence Details GCVE Metadata
public_report previdian successful_exploitation 0.70
View details 
{
  "added_date": "2026-09-22T11:32:55.153Z",
  "ahead_of_cisa_kev": null,
  "cve_id": "CVE-2026-56271",
  "cvss_estimated": false,
  "cvss_score": 9.3,
  "cvss_severity": "CRITICAL",
  "epss_percentile": 0.49936,
  "epss_score": 0.00655,
  "feed": "Previdian (previdian.com)",
  "ghsa_id": null,
  "not_yet_in_cisa_kev": true,
  "previous_ids": [],
  "product": "Flowise",
  "title": "Flowise - Weak Default JWT Secrets in Authentication Middleware",
  "used_in_malware": "unknown",
  "vendor": "Flowise",
  "virtual_patch": false,
  "vulnerability_id": "CVE-2026-56271"
}
 -
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