MediumVulnerability

CVE-2026-58198: ChatterBot UbuntuCorpusTrainer symlink attack during archive extraction

Source: NVD(opens in a new tab)
Identifier: CVE-2026-58198
Published: July 9, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.1%

Summary

ChatterBot versions prior to 1.2.14 have a flaw in UbuntuCorpusTrainer.extract(), which writes to a predictable home-rooted directory (~/ubuntu_data/ubuntu_dialogs) using a check-then-create pattern before calling tar.extractall(path=self.data_path). A local attacker who pre-plants a symlink at that path can redirect extracted archive contents to an attacker-chosen directory.

Mitigation

Fixed in version 1.2.14.

Details

Scores and exploitation

CVSS score: 5.5(medium)
CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector: local
Attack complexity: low
Privileges required: low
User interaction: none
EPSS: 0.1%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on October 11, 2026.
Disclosure date: July 9, 2026

Weaknesses and techniques

Weakness (CWE): CWE-59
CWE-367
Attack pattern (CAPEC): CAPEC-27

Classification

Attack type: Other
Attack sophistication: Moderate
AI component targeted: Framework
Impact: Integrity,
Confidentiality
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-58198

First tracked: July 9, 2026 at 08:10 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Summary

Mitigation

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