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CVE-2026-48818 Starlette: SSRF and NTLM credential theft via UNC paths in StaticFiles on Windows

🗓️ 17 Jun 2026 17:50:12Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 4 Views

Starlette is a lightweight ASGI framework/toolkit. In versions 1.0.1 and earlier, StaticFiles on Windows is vulnerable to SSRF. An UNC path such as attacker.comshare can cause os.path.realpath to initiate an outbound SMB connection before the path...

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Chainguard
CVE-2026-48818 vulnerabilities
17 Jun 202602:16
cgr
CVE
CVE-2026-48818
17 Jun 202617:50
cve
EUVD
EUVD-2026-37773
17 Jun 202617:50
euvd
Github Security Blog
Starlette: SSRF and NTLM credential theft via UNC paths in StaticFiles on Windows
15 Jun 202620:16
github
NVD
CVE-2026-48818
17 Jun 202619:18
nvd
OSV
CGA-F7F4-WQC8-R7F5
16 Jun 202620:57
osv
OSV
GHSA-WQP7-X3PW-XC5R Starlette: SSRF and NTLM credential theft via UNC paths in StaticFiles on Windows
15 Jun 202620:16
osv
OSV
MINI-5F34-QM5F-73QP
16 Jun 202617:59
osv
OSV
MINI-6GHV-JMFW-HV78
16 Jun 202617:23
osv
OSV
MINI-7H8W-JJW4-3RFX
16 Jun 202617:22
osv
Rows per page
[
  {
    "vendor": "Kludex",
    "product": "starlette",
    "versions": [
      {
        "version": "< 1.1.0",
        "status": "affected"
      }
    ]
  }
]

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17 Jun 2026 17:50Current
CVSS 3.17.5
EPSS0.00061
4