high7.5
CVE-2026-12243
nltk: Arbitrary File Read via Path Traversal in nltk.data.load() through Percent-Encoded Sequences
Impact
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | nltk | < 3.10.0 | 3.10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-m42h-3232-vpv3
- https://github.com/nltk/nltk/security/advisories/GHSA-m42h-3232-vpv3
- https://nvd.nist.gov/vuln/detail/CVE-2026-12243
- https://github.com/nltk/nltk/issues/3504
- https://github.com/nltk/nltk/pull/3522
- https://github.com/nltk/nltk/commit/aec4fce1b84ad725b8975f7365b23a4f626572a9
- https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-597.yaml
- https://huntr.com/bounties/39aa9354-54ca-4e77-96da-580eb1fe6ed1
- https://securityinfinity.com/research/path-traversal-in-nltks-nltk-data-load-via-percent-encoded-sequences