CVE-2026-6855

HIGH

Instructlab: instructlab: path traversal allows arbitrary directory creation and file write

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.1
EPSS 0.0002
EPSS Percentile 4.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-22
Status published
Products (1)
Red Hat/Red Hat Enterprise Linux AI (RHEL AI) 3
Published Apr 22, 2026
Tracked Since Apr 22, 2026