Is CVE-2026-9351 actively exploited?

No active exploitation of CVE-2026-9351 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9351 be exploited remotely?

Yes. CVE-2026-9351 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9351?

CVE-2026-9351 has a CVSS score of 6.5 (MEDIUM).

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MEDIUM

CVE-2026-9351

CWE-22Published: May 24, 2026· Updated: May 26, 2026

6.5

CVSS v3.1

EPSS:0.09%probability of exploitation in 30 daysPercentile:25.0th

Official 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.

NVD Source

Technical Analysis

CVE-2026-9351 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.