0.0
NA
CVE-2026-9351
NousResearch hermes-agent read_file Tool file_tools.py _is_blocked_device path traversal
Description

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.

INFO

Published Date :

May 24, 2026, 3:15 a.m.

Last Modified :

May 24, 2026, 3:15 a.m.

Remotely Exploit :

No

Source :

VulDB
Affected Products

The following products are affected by CVE-2026-9351 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

Solution
Patch the _is_blocked_device function in file_tools.py to prevent path traversal vulnerabilities.
  • Update the hermes-agent to a fixed version.
  • Review file access controls.
  • Sanitize user input for file paths.
  • Restrict file access to necessary directories.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-9351 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2026-9351 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    May. 24, 2026

    Action Type Old Value New Value
    Added Description 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.
    Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
    Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:P)
    Added CWE CWE-22
    Added Reference https://gist.github.com/YLChen-007/1d1aeff404cb88e06ec2fb3377f49fef
    Added Reference https://vuldb.com/submit/812214
    Added Reference https://vuldb.com/vuln/365314
    Added Reference https://vuldb.com/vuln/365314/cti
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.