CVE-2026-6855

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.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/security/cve/CVE-2026-6855	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2460013	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:redhat:instructlab:-:::::::*
	cpe:2.3:o:redhat:enterprise_linux_ai:3.0:::::::*

History

No history.

Information

Published : 2026-04-22 13:16

Updated : 2026-06-17 11:01

NVD link : CVE-2026-6855

Mitre link : CVE-2026-6855

CVE.ORG link : CVE-2026-6855

JSON object : View

Products Affected

redhat

enterprise_linux_ai
instructlab

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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