CVE-2026-82020

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.

CVSS v3 6.8 MEDIUM

6.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5
https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59
https://github.com/NousResearch/hermes-agent/pull/45821
https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19
https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-28 20:20

Updated : 2026-09-08 20:23

NVD link : CVE-2026-82020

Mitre link : CVE-2026-82020

CVE.ORG link : CVE-2026-82020

JSON object : View

Products Affected

No product.

CWE

CWE-552

Files or Directories Accessible to External Parties

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