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2 vulnerabilities found for nbviewer by jupyter
CVE-2026-86258 (GCVE-0-2026-86258)
Vulnerability from nvd – Published: 2026-09-06 12:37 – Updated: 2026-09-06 12:37
VLAI
EPSS
VEX
Title
nbviewer through 1.0.1 Path Traversal via LocalFileHandler
Summary
nbviewer through 1.0.1 contains a path traversal vulnerability in LocalFileHandler.can_show() that uses string-prefix comparison instead of proper path validation. Attackers can read files from sibling directories outside the configured root by requesting paths that share the root as a textual prefix, disclosing unintended notebooks and credentials.
Severity
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/jupyter/nbviewer/issues/1115 | issue-tracking |
| https://github.com/jupyter/nbviewer/blob/1.0.1/nb… | technical-description |
| https://github.com/jupyter/nbviewer/commit/aad361… | patch |
| https://github.com/jupyter/nbviewer | product |
| https://www.vulncheck.com/advisories/nbviewer-thr… | third-party-advisory |
Date Public
2026-06-18 00:00
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{
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CVE-2026-86258 (GCVE-0-2026-86258)
Vulnerability from cvelistv5 – Published: 2026-09-06 12:37 – Updated: 2026-09-06 12:37
VLAI
EPSS
VEX
Title
nbviewer through 1.0.1 Path Traversal via LocalFileHandler
Summary
nbviewer through 1.0.1 contains a path traversal vulnerability in LocalFileHandler.can_show() that uses string-prefix comparison instead of proper path validation. Attackers can read files from sibling directories outside the configured root by requesting paths that share the root as a textual prefix, disclosing unintended notebooks and credentials.
Severity
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/jupyter/nbviewer/issues/1115 | issue-tracking |
| https://github.com/jupyter/nbviewer/blob/1.0.1/nb… | technical-description |
| https://github.com/jupyter/nbviewer/commit/aad361… | patch |
| https://github.com/jupyter/nbviewer | product |
| https://www.vulncheck.com/advisories/nbviewer-thr… | third-party-advisory |
Date Public
2026-06-18 00:00
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}
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