A flaw was found in InstructLab. A local attacker could exploit a path traversal vulnerability in the chat session handler by manipulating the `logs_dir` parameter. This allows the attacker to create new directories and write files to arbitrary locations on the system, potentially leading to unauthorized data modification or disclosure.

Project Subscriptions

Vendors Products
Enterprise Linux Ai Subscribe
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-pqmg-c2j8-fq92 InstructLab vulnerable to Path Traversal
Fixes

Solution

No solution given by the vendor.


Workaround

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

History

Thu, 23 Apr 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Wed, 22 Apr 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 22 Apr 2026 12:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in InstructLab. A local attacker could exploit a path traversal vulnerability in the chat session handler by manipulating the `logs_dir` parameter. This allows the attacker to create new directories and write files to arbitrary locations on the system, potentially leading to unauthorized data modification or disclosure.
Title Instructlab: instructlab: path traversal allows arbitrary directory creation and file write
First Time appeared Redhat
Redhat enterprise Linux Ai
Weaknesses CWE-22
CPEs cpe:/a:redhat:enterprise_linux_ai:3
Vendors & Products Redhat
Redhat enterprise Linux Ai
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-04-24T03:55:18.507Z

Reserved: 2026-04-22T12:20:39.844Z

Link: CVE-2026-6855

cve-icon Vulnrichment

Updated: 2026-04-22T18:35:01.147Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-22T13:16:22.410

Modified: 2026-04-22T21:23:52.620

Link: CVE-2026-6855

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-15T00:00:00Z

Links: CVE-2026-6855 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-04-27T20:21:07Z

Weaknesses