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CVE-2026-55450 Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak

🗓️ 23 Jun 2026 16:17:52Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 154 Views

Langflow allows unauthenticated uploads without limits, causing space exhaustion and path exposure; fixed in 1.9.1.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-55450
23 Jun 202616:17
–attackerkb
circl
Circl
CVE-2026-55450
17 Jun 202603:40
–circl
cve
CVE
CVE-2026-55450
23 Jun 202616:17
–cve
githubexploit
GithubExploit
Exploit for Exposure of Sensitive Information to an Unauthorized Actor in Langflow
8 Oct 202622:48
–githubexploit
euvd
EUVD
EUVD-2026-38511
23 Jun 202616:17
–euvd
github
Github Security Blog
Langflow: Unauthenticated file upload leads to DoS (space exhaustion) and information leak
17 Jun 202618:43
–github
kitploit
Kitploit
CVE-2026-55450
9 Oct 202605:32
–kitploit
nessus
Tenable Nessus
Langflow < 1.9.1 Multiple Vulnerabilities
10 Jul 202600:00
–nessus
mend
Mend
CVE-2026-55450
23 Jun 202616:17
–mend
nuclei
Nuclei
Langflow < 1.9.1 - Unauthenticated File Upload
14 Oct 202602:05
–nuclei
Rows per page
[
  {
    "vendor": "langflow-ai",
    "product": "langflow",
    "versions": [
      {
        "version": "< 1.9.1",
        "status": "affected"
      }
    ]
  }
]

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