CVE-2026-109956
Last modified
CVE-2026-109956 is a high-severity vulnerability rated 7/10 on the CVSS scale. NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass nltk.pathsec containment by supplying unvalidated model paths. Attackers controlling the model_filename or model argument can make the weka JVM write files via -d or probe files via -l outside allowed data roots.. EPSS estimates a 0.32% chance of exploitation in the next 30 days.
Description
NLTK through 3.10.3 contains a path traversal vulnerability in WekaClassifier that allows attackers to bypass nltk.pathsec containment by supplying unvalidated model paths. Attackers controlling the model_filename or model argument can make the weka JVM write files via -d or probe files via -l outside allowed data roots.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| nltk | nltk | <= 3.10.3 |
References
Timeline
- Published
- Last Modified
- Status
- Awaiting Analysis
Frequently Asked Questions
What is CVE-2026-109956?
How severe is CVE-2026-109956?
How do I fix CVE-2026-109956?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-109950FreeRDP from 3.0.0 before 3.32.0 contains a heap out-of-boun…4.3
- CVE-2026-109951FreeRDP 3.17.1 before 3.32.0 contains a heap buffer over-rea…5.3
- CVE-2026-109952The FreeRDP client 3.0.0 before 3.32.0 does not check a serv…5.3
- CVE-2026-109953FreeRDP 3.0.0 before 3.32.0 contains an insufficiently prote…5.3
- CVE-2026-109954Parse Server 5.4.0 before 8.6.96 and 9.0.0 before 9.10.2-alp…6.5
- CVE-2026-109955Hono from 4.12.4 before 4.13.11 contains a middleware bypass…5.3
- CVE-2026-109957EspoCRM before 10.0.7 contains an insecure direct object ref…4.3
- CVE-2026-109958EspoCRM 4.0.0 before 10.0.7 contains an improper access cont…4.3
- CVE-2026-109959EspoCRM 4.0.0 before 10.0.7 contains an access control vulne…4.3
- CVE-2026-10996Inappropriate implementation in Workers in Google Chrome pri…6.5
- CVE-2026-109960Froxlor 2.0.0 before 2.3.14 contains a stored cross-site scr…7.7
- CVE-2026-109961Froxlor 0.10.0 before 2.3.14 contains a newline injection vu…8.5
Are you affected by CVE-2026-109956?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST