CVE-2026-9351 MEDIUM

CVE-2026-9351: NousResearch hermes-agent read_file Tool file_tools.py _is_blocked_device path traversal

Vendor Nousresearch
Product hermes-agent
Weakness CWE-22 · Path traversal
Published May 24, 2026
Last update May 26, 2026

CVSS base score

6.9/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A security flaw has been discovered in NousResearch hermes-agent up to 2026.4.16. This vulnerability affects the function _is_blocked_device of the file tools/file_tools.py of the component read_file Tool. Performing a manipulation results in path traversal. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Key dates

02Disclosure timeline

May 24, 2026 CVE published
May 26, 2026 Record updated