Path Traversal

NLTK is vulnerable to a path traversal. The vulnerability is due to insufficient validation of selectors or poisoned index state in FramenetCorpusReader and NKJPCorpusReader, which allows an attacker to supply crafted parameters to methods such as framebyname, doc, lu, and header to access and...

NLTK: Symlink-based sandbox bypass in FramenetCorpusReader (bypasses the fix for CVE-2026-54292)

This is a new, distinct vulnerability: a bypass of the fix already published as GHSA-xh95-f55m-82fw "Path traversal in NLTK FramenetCorpusReader.frame allows arbitrary XML file read, bypassing the nltk.pathsec sandbox", not a duplicate of it. Summary The original advisory was fixed PR 3581 by...

EUVD-2026-64338

NLTK: Symlink-based sandbox bypass in FramenetCorpusReader bypasses the fix for CVE-2026-54292...

GHSA-F833-7JW8-XWRV NLTK: Symlink-based sandbox bypass in FramenetCorpusReader (bypasses the fix for CVE-2026-54292)

This is a new, distinct vulnerability: a bypass of the fix already published as GHSA-xh95-f55m-82fw "Path traversal in NLTK FramenetCorpusReader.frame allows arbitrary XML file read, bypassing the nltk.pathsec sandbox", not a duplicate of it. Summary The original advisory was fixed PR 3581 by...

EUVD-2026-64337

NLTK: Stable FrameNet and NKJP readers parse outside-root XML...

CVE-2026-62385

A flaw was found in NLTK. This path traversal vulnerability, located in the FramenetCorpusReader and NKJPCorpusReader components, allows an attacker to read arbitrary XML files accessible to the application. This can be achieved by supplying unsafe selectors or poisoned index state, exploiting...

CVE-2026-62384

A flaw was found in NLTK. The FramenetCorpusReader component is vulnerable to a symlink-based sandbox bypass. An attacker can exploit this by placing specially crafted symbolic links within a corpus subdirectory. These symlinks bypass path validation, allowing the attacker to read arbitrary XML...

External Control of File Name or Path

Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to External Control of File Name or Path via path handling in FramenetCorpusReader and NKJPCorpusReader. An attacker can read and parse arbitrary...

Directory Traversal

Overview nltk is a Natural Language Toolkit NLTK is a Python package for natural language processing. Affected versions of this package are vulnerable to Directory Traversal via symlink handling in FramenetCorpusReader. An attacker can read arbitrary XML files outside the configured corpus root b...

CVE-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 the path validatio...

PYSEC-2026-3789

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 validatio...

CVE-2026-62385

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit framebyname, doc, lu, and header methods wi...

PYSEC-2026-3728

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit framebyname, doc, lu, and header methods wi...

PYSEC-2026-3789

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 validatio...

CVE-2026-62385

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit framebyname, doc, lu, and header methods wi...

CVE-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 the path validatio...

UBUNTU-CVE-2026-62385

NLTK versions before 3.10.0 contain a path traversal vulnerability in FramenetCorpusReader and NKJPCorpusReader that allows attackers to parse XML files outside the corpus root by supplying unsafe selectors or poisoned index state. Attackers can exploit framebyname, doc, lu, and header methods wi...

UBUNTU-CVE-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 the path validatio...

CVE-2026-62384 NLTK FramenetCorpusReader Symlink Sandbox Bypass before 3.10.2

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 validatio...

CVE-2026-62384 NLTK FramenetCorpusReader Symlink Sandbox Bypass before 3.10.2

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 validatio...