CVE-2026-78683
2 advisories.
PyPI/nltk CVE-2026-78683: critical, EPSS 0.51%
NLTK: Unsafe Pickle Deserialization in TransitionParser Allows Remote Code Execution
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: GHSA-rhp5-r9x4-f5g2
- https://github.com/nltk/nltk/security/advisories/GHSA-rhp5-r9x4-f5g2
- https://nvd.nist.gov/vuln/detail/CVE-2026-78683
- https://github.com/nltk/nltk/pull/3631
- https://github.com/nltk/nltk/commit/f26b3753038d937b68145daf15e9636f8451053c
- https://github.com/nltk/nltk
- https://github.com/nltk/nltk/releases/tag/v3.10.0
- https://github.com/pypa/advisory-database/tree/main/vulns/nltk/PYSEC-2026-3734.yaml
- https://www.vulncheck.com/advisories/nltk-before-remote-code-execution-via-unsafe-pickle-deserialization
CVE-2026-78683 · published · modified · JSON
PyPI/nltk CVE-2026-78683: unknown, EPSS 0.51%
NLTK before 3.10.0 (affected versions <=3.9.4) contains an unsafe pickle deserialization vulnerability in the TransitionParser.parse() method (nltk/parse/transitionparser.py). The method calls pickle_
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-2026-3734
- https://www.vulncheck.com/advisories/nltk-before-remote-code-execution-via-unsafe-pickle-deserialization
- https://github.com/nltk/nltk/security/advisories/GHSA-rhp5-r9x4-f5g2
CVE-2026-78683 · published · modified · JSON