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VULNERABILITIES

CVE-2026-62384 Details

Description

NLTK versions before 3.10.2 contain a symlink-based sandbox bypass in FramenetCorpusReader that allows attackers to read arbitrary XML files outside the corpus root. Attackers can place symlinks with names containing no path separators inside the corpus subdirectory, which pass the path validation guard and are resolved to files outside the intended corpus root when accessed via frame_by_name(), _lu_file(), or doc() methods.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/nltk/nltk/security/advisories/GHSA-f833-7jw8-xwrv CISA-ADPExploitVendor Advisory
https://github.com/nltk/nltk/security/advisories/GHSA-f833-7jw8-xwrv [email protected]ExploitVendor Advisory
https://www.vulncheck.com/advisories/nltk-framenetcorpusreader-symlink-sandbox-bypass-before [email protected]Third Party Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')[email protected]

Affected Products

ProductVersions
nltk nltk
>= 3.10.0, < 3.10.2

CPE

  • cpe:2.3:a:nltk:nltk:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-62384
NVD Published Date:
Aug 22, 2026
NVD Last Modified:
Sep 2, 2026
Source:
[email protected]
CVE-2026-62384 Details - Not Deferred