GHSA-w5q8-6jpp-4246

Source

https://github.com/advisories/GHSA-w5q8-6jpp-4246

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-w5q8-6jpp-4246/GHSA-w5q8-6jpp-4246.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-w5q8-6jpp-4246

Withdrawn

2026-09-02T14:49:21Z

Published

2026-08-25T18:31:52Z

Modified

2026-09-02T15:00:10Z

Severity

5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
8.2 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Summary

Duplicate Advisory: Corpus readers follow symlinks outside trusted roots despite pathsec enforcement

Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-p4rw-rvv2-7xwr. This link is maintained to preserve external references.

Original Description

NLTK versions before 3.10.3 contain a path traversal vulnerability in corpus readers that reopen root-derived paths using built-in open() instead of nltk.pathsec.open(), allowing symlinks to escape trusted roots. Attackers who stage symlinked corpus files under a trusted data root can disclose outside-root content through normal corpus reader methods like channels(), domains(), and synonyms().

Database specific

{
    "cwe_ids": [
        "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-09-02T14:49:21Z",
    "nvd_published_at": "2026-08-25T16:17:28Z",
    "severity": "HIGH"
}

References

Affected packages

PyPI / nltk

Package

Name: nltk; View open source insights on deps.dev
Purl: pkg:pypi/nltk

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Last Affected

3.10.2

Affected versions

2.*

2.0.1rc2-git

2.0b4

2.0b5

2.0b6

2.0b7

2.0b8

2.0b9

2.0.1rc1

2.0.1rc3

2.0.1rc4

2.0.1

2.0.2

2.0.3

2.0.4

2.0.5

0.*

0.8

0.9

0.9.3

0.9.4

0.9.5

0.9.6

0.9.7

0.9.8

0.9.9

3.*

3.0.0b1

3.0.0b2

3.0.0

3.0.1

3.0.2

3.0.3

3.0.4

3.0.5

3.1

3.2

3.2.1

3.2.2

3.2.3

3.2.4

3.2.5

3.3

3.4

3.4.1

3.4.2

3.4.3

3.4.4

3.4.5

3.5b1

3.5

3.6

3.6.1

3.6.2

3.6.3

3.6.4

3.6.5

3.6.6

3.6.7

3.7

3.8

3.8.1

3.9b1

3.9

3.9.1

3.9.2

3.9.3

3.9.4

3.10.0

3.10.1

3.10.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-w5q8-6jpp-4246/GHSA-w5q8-6jpp-4246.json"