Lucene search
+L

CVE-2026-55446

🗓️ 23 Jun 2026 16:26:17Reported by GitHub_MType 
cve
 cve
🔗 web.nvd.nist.gov👁 64 Views🌐 WEB

Langflow unauthenticated DoS via long multipart boundary on /api/v1/files/upload; fixed in 1.0.19.

Related
Detection
Affected
Refs
Paths
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-55446
23 Jun 202616:26
–attackerkb
circl
Circl
CVE-2026-55446
19 Jun 202613:09
–circl
cvelist
Cvelist
CVE-2026-55446 Langflow: Unauthenticated DoS through multipart form boundary file upload
23 Jun 202616:26
–cvelist
euvd
EUVD
EUVD-2026-38515
23 Jun 202616:26
–euvd
github
Github Security Blog
Langflow: Unauthenticated DoS through multipart form boundary file upload
19 Jun 202621:17
–github
nessus
Tenable Nessus
Langflow < 1.0.19 DoS (CVE-2026-55446)
10 Jul 202600:00
–nessus
mend
Mend
CVE-2026-55446
23 Jun 202616:26
–mend
nvd
NVD
CVE-2026-55446
23 Jun 202617:17
–nvd
osv_ghsa
osv_ghsa
GHSA-QWQC-P3Q8-WCG9 Langflow: Unauthenticated DoS through multipart form boundary file upload
19 Jun 202621:17
–osv_ghsa
osv_pysec
osv_pysec
PYSEC-2026-223
23 Jun 202617:17
–osv_pysec
Rows per page
NVD
Vulners
Node
langflowlangflowRange<1.0.19
[
  {
    "vendor": "langflow-ai",
    "product": "langflow",
    "versions": [
      {
        "version": "< 1.0.19",
        "status": "affected"
      }
    ]
  }
]
ParameterPositionPathDescriptionCWE
multipart form boundaryrequest body/api/v1/files/upload/An attacker can send a request to this endpoint without authentication and use a very long multipart form boundary to cause a Denial of Service (DoS) by making the application unusable.CWE-400

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

24 Jun 2026 13:50Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.17.5
EPSS0.00581
SSVC
64