What is GHSA-w2j9-qh3j-4h63?

GHSA-w2j9-qh3j-4h63 is a security advisory published by GitHub Security Advisories with Medium severity. NLTK from 3.9.4 before 3.10.4 contains a symlink following vulnerability in nltk.sem.chat80...

Which CVE IDs does GHSA-w2j9-qh3j-4h63 cover?

GHSA-w2j9-qh3j-4h63 covers the following CVE IDs: CVE-2026-126302. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-w2j9-qh3j-4h63?

GHSA-w2j9-qh3j-4h63 has a CVSS v3 base score of 3.3, published by GitHub Security Advisories.

GHSA-w2j9-qh3j-4h63MediumCVSS 3.3

NLTK from 3.9.4 before 3.10.4 contains a symlink following vulnerability in nltk.sem.chat80...

Vendor

GitHub Security Advisories

Published

November 13, 2026

Last Modified

November 13, 2026

🔗 CVE IDs covered (1)

CVE-2026-126302 →

📋 Description

NLTK from 3.9.4 before 3.10.4 contains a symlink following vulnerability in nltk.sem.chat80.sql_query() that bypasses the pathsec data-root sandbox containment check. Attackers who can write into a trusted NLTK data root can plant a symbolic link to read SQLite databases outside the sandbox.

🔗 References (4)

https://github.com/nltk/nltk/security/advisories/GHSA-xmfg-f9cm-w86q
https://nvd.nist.gov/vuln/detail/CVE-2026-126302
https://www.vulncheck.com/advisories/nltk-3.9.4-before-3.10.4-symlink-sandbox-escape-via-chat80-sql-query
https://github.com/advisories/GHSA-w2j9-qh3j-4h63