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CVE-2026-86258 nbviewer through 1.0.1 Path Traversal via LocalFileHandler

🗓️ 06 Sep 2026 12:37:49Reported by VulnCheckType 
cvelist
 cvelist
🔗 www.cve.org👁 45 Views

Path traversal in nbviewer through 1.0.1 LocalFileHandler via prefix comparison discloses files.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-86258
6 Sep 202613:41
–circl
cve
CVE
CVE-2026-86258
6 Sep 202612:37
–cve
euvd
EUVD
EUVD-2026-72125
6 Sep 202612:37
–euvd
nvd
NVD
CVE-2026-86258
6 Sep 202613:17
–nvd
ptsecurity
Positive Technologies
PT-2026-86528
6 Sep 202600:00
–ptsecurity
rapid7
Rapid7 Vulnerability Database (full)
CVE-2026-86258: Improper Limitation of a Pathname to a Restricted Directory
6 Sep 202600:00
–rapid7
vulnrichment
Vulnrichment
CVE-2026-86258 nbviewer through 1.0.1 Path Traversal via LocalFileHandler
6 Sep 202612:37
–vulnrichment
[
  {
    "vendor": "jupyter",
    "product": "nbviewer",
    "defaultStatus": "unaffected",
    "packageURL": "pkg:pypi/nbviewer",
    "versions": [
      {
        "version": "0",
        "lessThanOrEqual": "1.0.1",
        "status": "affected",
        "versionType": "semver"
      }
    ]
  }
]

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24 Sep 2026 14:21Current
CVSS 3.15.9
CVSS 48.2
EPSS0.00522
SSVC
45