CVE-2026-84288

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.

CVSS v3 4.3 MEDIUM
CVSS v2.0 4.0 MEDIUM

4.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:N/I:N/A:P

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/hackerguopeng/cve/tree/main/Hermes_ACP_Queued_Prompt_DoS_Report
https://vuldb.com/cve/CVE-2026-84288
https://vuldb.com/submit/882873
https://vuldb.com/vuln/397719
https://vuldb.com/vuln/397719/cti

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-01 22:17

Updated : 2026-09-02 16:17

NVD link : CVE-2026-84288

Mitre link : CVE-2026-84288

CVE.ORG link : CVE-2026-84288

JSON object : View

Products Affected

No product.

CWE

CWE-404

Improper Resource Shutdown or Release

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