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.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

1. Aug 22, 2026 · NIST NVD

   Detected

   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(), _

2. Oct 14, 2026 · NIST NVD

   Updated

   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(), _

Affected

• cpe nltk/nltkversion unspecified

Sources

• CVE.orgVulnerability recordCVE-2026-62384

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2026-62384

  30-day exploitation probability 0.7%

  first.org
• NIST NVDVulnerability recordCVE-2026-62384

  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 t

  nvd.nist.gov

References

• Exploit · github.com
• Third Party Advisory · vulncheck.com