Vendor
Langflow: actively exploited vulnerabilities
5 vulnerabilities in Langflow products are listed in CISA’s catalog of actively exploited vulnerabilities, 1 of them used by ransomware. Latest addition on July 21, 2026: CVE-2026-0770 (Langflow).
- 5 exploited vulnerabilities in the catalog
- 4 added in the last 12 months
- 1 used by ransomware
- 1 product affected
Affected products
- Langflow5
All exploited vulnerabilities
CISA KEV catalog, newest first: each entry corresponds to observed exploitation.
2026 4 vulnerabilities
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CVE-2026-0770Langflow Inclusion of Functionality from Untrusted Control Sphere Vulnerability
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CVE-2026-55255Langflow Authorization Bypass Through User-Controlled Key Vulnerability
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CVE-2025-34291Langflow Origin Validation Error Vulnerability
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CVE-2026-33017Langflow Code Injection Vulnerability
2025 1 vulnerability
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CVE-2025-3248Used by ransomwareLangflow Missing Authentication Vulnerability
What to do
If your estate includes any of these products, make sure the vendor’s patches are applied, starting with the most recent vulnerabilities and those used by ransomware, then look for signs of compromise: an exploited vulnerability has often been used before it was fixed.
Additions from all vendors are tracked on the Actively exploited vulnerabilities page, updated several times a day. Sources: CISA KEV catalog (US public domain) and CERT-FR.