CVE-2026-0846
March 09, 2026
A vulnerability in the "filestring()" function of the "nltk.util" module in nltk version 3.9.2 allows arbitrary file read due to improper validation of input paths. The function directly opens files specified by user input without sanitization, enabling attackers to access sensitive system files by providing absolute paths or traversal paths. This vulnerability can be exploited locally or remotely, particularly in scenarios where the function is used in web APIs or other interfaces that accept user-supplied input.
Affected Packages
nltk (CONDA):
Affected version(s) >=2.0.3 <3.9.3Fix Suggestion:
Update to version 3.9.3https://github.com/nltk/nltk.git (GITHUB):
Affected version(s) =v3.9.2 <3.9.3Fix Suggestion:
Update to version 3.9.3nltk (PYTHON):
Affected version(s) >=0.8 <3.9.3Fix Suggestion:
Update to version 3.9.3Related Resources (1)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Absolute Path Traversal
EPSS
Base Score:
0.10
