Description (CNA)
NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incr_download methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader directory can create hardlinks pointing to outside-root files that are then overwritten during normal package extraction, mutating files outside the intended install tree.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| nltk / nltk | affected 0 before 3.10.3; unaffected 3.10.3 |
CWE
CWE-59
References
- https://github.com/nltk/nltk/security/advisories/GHSA-f794-5jv7-7672
- https://www.vulncheck.com/advisories/nltk-before-3.10.3-hardlink-file-overwrite-via-downloader
ADP enrichment
No English description supplied.