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NVD Vulnerability Details :
CVE-2026-0847
Received
More InfoOfficial Page
Source-security@huntr.dev
View Known Exploited Vulnerability (KEV) details
Published At-04 Mar, 2026 | 19:16
Updated At-04 Mar, 2026 | 19:16

A vulnerability in NLTK versions up to and including 3.9.2 allows arbitrary file read via path traversal in multiple CorpusReader classes, including WordListCorpusReader, TaggedCorpusReader, and BracketParseCorpusReader. These classes fail to properly sanitize or validate file paths, enabling attackers to traverse directories and access sensitive files on the server. This issue is particularly critical in scenarios where user-controlled file inputs are processed, such as in machine learning APIs, chatbots, or NLP pipelines. Exploitation of this vulnerability can lead to unauthorized access to sensitive files, including system files, SSH private keys, and API tokens, and may potentially escalate to remote code execution when combined with other vulnerabilities.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.08.6HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
Type: Secondary
Version: 3.0
Base score: 8.6
Base severity: HIGH
Vector:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-22Primarysecurity@huntr.dev
CWE ID: CWE-22
Type: Primary
Source: security@huntr.dev
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://huntr.com/bounties/fc69914f-36a9-4c18-8503-10013b39f966security@huntr.dev
N/A
Hyperlink: https://huntr.com/bounties/fc69914f-36a9-4c18-8503-10013b39f966
Source: security@huntr.dev
Resource: N/A
Change History
0Changes found

Details not found