Hermes Agent before 0.16.0 creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644), exposing conversation history and HMAC secrets to local users. Attackers with local filesystem access can read these files directly to obtain sensitive data including conversation history, tool payloads, prompts, and per-route HMAC secrets.
History

Thu, 18 Jun 2026 20:45:00 +0000

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

Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Description Hermes Agent before 0.16.0 creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644), exposing conversation history and HMAC secrets to local users. Attackers with local filesystem access can read these files directly to obtain sensitive data including conversation history, tool payloads, prompts, and per-route HMAC secrets.
Title Hermes Agent < 0.16.0 - Sensitive File Permission Vulnerability in Store Files
Weaknesses CWE-276
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-06-17T18:39:35.273Z

Reserved: 2026-06-10T21:23:54.283Z

Link: CVE-2026-53870

cve-icon Vulnrichment

Updated: 2026-06-17T18:37:21.459Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-18T20:30:05Z