CVE-2026-6855

HIGH
MEDIUM Priority: 0.01 BB Relevance: 39/100
Published: 2026-04-22 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: Low
UI: None
S: Unchanged
C: High
I: High
A: None

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.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
redhat enterprise_linux_ai 3.0
redhat instructlab -

References & Advisories (2)

Bug Bounty Relevance

39 / 100
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

EPSS — Exploitation Probability

0.16%
Raw Score 0.001640
Percentile 5.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00164
2026-10-28
0.00164

Intelligence Sources

nvd ref →