# CVE-2026-6855

> Vulnerability · severity: **HIGH** (CVSS 7.1).

## 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.

## Key facts

- **CVE ID:** CVE-2026-6855
- **Published:** 2026-04-22
- **CVSS severity:** HIGH
- **CVSS base score:** 7.1
- **CWE codes:** CWE-22

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-6855

## Citation

> AI Analytics. CVE-2026-6855. Retrieved 2026-07-19 from https://api.ai-analytics.org/cve/CVE-2026-6855. Derived from NIST NVD. Licensed CC0.

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