CVE-2026-58198
ChatterBot: Symlink-Following Arbitrary Write via UbuntuCorpusTrainer
Description
ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create pattern followed by tar.extractall(path=self.data_path), allowing a local attacker who pre-plants a symlink at the predictable path to cause archive contents to be written through the symlink to an attacker-chosen directory. This issue is fixed in version 1.2.14.
INFO
Published Date :
July 9, 2026, 7:17 p.m.
Last Modified :
Oct. 25, 2026, 5:10 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | [email protected] |
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-58198.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-58198 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-58198
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-58198 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-58198 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 25, 2026
Action Type Old Value New Value Added Translation Title: ChatterBot de gunthercox, Description: ChatterBot es un motor de diálogo conversacional de aprendizaje automático para crear chatbots. Antes de la versión 1.2.14, UbuntuCorpusTrainer.extract() utiliza un directorio de salida predecible con raíz en el directorio de inicio (~/ubuntu_data/ubuntu_dialogs) con un patrón de verificar y luego crear, seguido de tar.extractall(path=self.data_path), lo que permite a un atacante local que pre-planta un enlace simbólico en la ruta predecible hacer que el contenido del archivo se escriba a través del enlace simbólico a un directorio elegido por el atacante. Este problema se solucionó en la versión 1.2.14. -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 09, 2026
Action Type Old Value New Value Added Reference https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-wvrh-2f4m-924v Added SSVC {'id': 'CVE-2026-58198', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-09T19:12:08.575193Z'} -
New CVE Received by [email protected]
Jul. 09, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'gunthercox', 'product': 'ChatterBot', 'versions': [{'status': 'affected', 'version': '< 1.2.14'}]}] Added Description ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create pattern followed by tar.extractall(path=self.data_path), allowing a local attacker who pre-plants a symlink at the predictable path to cause archive contents to be written through the symlink to an attacker-chosen directory. This issue is fixed in version 1.2.14. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-59 Added CWE CWE-367 Added Reference https://github.com/gunthercox/ChatterBot/commit/82817b5c28bfd43e682b991bcc76e6f780726dbf Added Reference https://github.com/gunthercox/ChatterBot/pull/2445 Added Reference https://github.com/gunthercox/ChatterBot/releases/tag/1.2.14 Added Reference https://github.com/gunthercox/ChatterBot/security/advisories/GHSA-wvrh-2f4m-924v