PyPI/nltk CVE-2026-80205: unknown, EPSS 0.65%
NLTK versions before 3.10.0 contain a regular expression denial of service vulnerability in Text.findall() and TokenSearcher.findall() methods that accept user-supplied regular expressions without val
Action: Upgrade nltk to 3.10.0 or later.
pip install nltk==3.10.0Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.10.0 | - |
Fixed versions
| 3.10.0 |
Sources
- osv: PYSEC-2026-3750
- http://www.openwall.com/lists/oss-security/2026/09/01/3
- https://www.vulncheck.com/advisories/nltk-before-3.10.0-redos-via-text-findall-unvalidated-regex
- https://github.com/nltk/nltk/security/advisories/GHSA-rrv8-h7p8-rx55
CVE-2026-80205 · published · modified · JSON