CVE-2026-0848
10.0 · CRITICALOverview
CVE-2026-0848 is a critical-severity vulnerability affecting nltk nltk. It was published on March 5, 2026 and has a CVSS 3.0 base score of 10.0 (CRITICAL).
This vulnerability has a CVSS 3.0 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
NLTK versions <=3.9.2 are vulnerable to arbitrary code execution due to improper input validation in the StanfordSegmenter module. The module dynamically loads external Java .jar files without verification or sandboxing. An attacker can supply or replace the JAR file, enabling the execution of arbitrary Java bytecode at import time. This vulnerability can be exploited through methods such as model poisoning, MITM attacks, or dependency poisoning, leading to remote code execution. The issue arises from the direct execution of the JAR file via subprocess with unvalidated classpath input, allowing malicious classes to execute when loaded by the JVM.
Remediation
Check the references section for vendor advisories and patches from nltk. Update nltk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| nltk | nltk | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-0848?
CVE-2026-0848 is a critical-severity vulnerability affecting nltk nltk. It was published on March 5, 2026 and has a CVSS 3.0 base score of 10.0 (CRITICAL).
How severe is CVE-2026-0848?
This vulnerability has a CVSS 3.0 base score of 10.0, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-0848?
Check the references section for vendor advisories and patches from nltk. Update nltk to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-0848?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-0848 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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