CVE-2026-6855

high

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2460013

https://access.redhat.com/security/cve/CVE-2026-6855

Details

Source: Mitre, NVD

Published: 2026-04-22

Updated: 2026-04-22

Risk Information

CVSS v2

Base Score: 6.2

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Severity: High

EPSS

EPSS: 0.00015