Upstream information

CVE-2026-0847 at MITRE

Description

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
CVSS detail CNA (Huntr.dev) National Vulnerability Database
Base Score 8.6 7.5
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact Low None
Availability Impact Low None
CVSSv3 Version 3 3.1
SUSE Bugzilla entry: 1259232 [IN_PROGRESS]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
SUSE Package Hub 15 SP7
  • python3-nltk >= 3.7-bp157.3.6.1
 Patchnames:
openSUSE-2026-69
openSUSE Tumbleweed
  • python311-nltk >= 3.9.3-1.1
  • python313-nltk >= 3.9.3-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10304

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Package Hub 15 SP7 python-nltk Released

SUSE Timeline for this CVE

CVE page created: Wed Mar 4 22:03:14 2026
CVE page last modified: Tue May 19 16:20:18 2026