CVE-2026-84288

Medium

Description

A vulnerability has been found in NousResearch hermes-agent up to 0.18.2. This affects the function HermesACPAgent.prompt of the file acp_adapter/session.py of the component ACP Prompt Workflow. Such manipulation leads to denial of service. The attack may be performed from remote. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

SeverityMedium
CVSS4.3
Exploit probability—
ProductNousresearch Hermes-agent
PublishedSep 1, 2026
First seenSep 1, 2026
Weakness typeCWE-404CWE-404

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
nousresearch hermes-agent0.18.0, 0.18.1, 0.18.2—

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