#VU124091 Uncontrolled Recursion in Natural Language Toolkit

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Main Vulnerability Database Vulnerabilities #VU124091

#VU124091 Uncontrolled Recursion in Natural Language Toolkit

Published: March 18, 2026


Vulnerability identifier: #VU124091
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: N/A
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability: Public exploit is available
Vulnerable software:
Natural Language Toolkit
Software vendor:
nltk.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion in JSONTaggedDecoder.decode_obj(). A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

External links