Description
Hermes Agent 0.16.0 prior to 0.17.0 contains an improper path restriction vulnerability that allows attackers who can influence ingested message content to overwrite the credential store by bypassing sensitive-path guards that excluded the auth.json file. Attackers can craft malicious messages directing the agent's file-write tooling to overwrite the credential store without triggering any path-based protection, enabling credential tampering or unauthorized access.
Published: 2026-08-28
Score: 7.6 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 28 Aug 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Nousresearch
Nousresearch hermes-agent
Vendors & Products Nousresearch
Nousresearch hermes-agent

Fri, 28 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Description Hermes Agent 0.16.0 prior to 0.17.0 contains an improper path restriction vulnerability that allows attackers who can influence ingested message content to overwrite the credential store by bypassing sensitive-path guards that excluded the auth.json file. Attackers can craft malicious messages directing the agent's file-write tooling to overwrite the credential store without triggering any path-based protection, enabling credential tampering or unauthorized access.
Title Hermes Agent 0.16.0 < 0.17.0 Credential Store Overwrite via File-Write Tool
Weaknesses CWE-552
References
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'}

cvssV4_0

{'score': 7.6, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Nousresearch Hermes-agent
cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-08-28T19:59:03.517Z

Reserved: 2026-08-27T21:39:20.459Z

Link: CVE-2026-82020

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T20:20:14.323

Modified: 2026-08-28T20:20:14.323

Link: CVE-2026-82020

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T22:15:04Z

Weaknesses
  • CWE-552

    Files or Directories Accessible to External Parties