CVE-2026-62385CWE-73

CVE-2026-62385

Medium · published August 22, 2026

CVSS v3.1
5.9
EPSS
0%
Percentile
35.3
In the wild
Unconfirmed
What it is

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 frame_by_name, doc, lu, and header methods with crafted parameters to read arbitrary XML files accessible to the application.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS v4.0
8.2 · 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
EPSS
0.00420 · 35.3th percentile
Weakness
CWE-73 · External Control of File Name or Path
Published
2026-08-22T19:16Z
Affected products (1)
ProductVersionsFixed in
nltk/nltk< 3.10.03.10.0
References (3)
https://github.com/nltk/nltk/security/advisories/GHSA-568f-pv23-39p4 · [email protected]https://www.vulncheck.com/advisories/nltk-path-traversal-via-framenet-and-nkjp-readers · [email protected]https://github.com/nltk/nltk/security/advisories/GHSA-568f-pv23-39p4 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 22 AUG 14:12Z
    NLTK 3.9.4 Path Traversal via FrameNet and NKJP Readers
    cvelistv5