CVE-2026-53870
Hermes Agent < 0.16.0 - Sensitive File Permission Vulnerability in Store Files
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-276 |
| Vendor | nousresearch |
| Product | hermes-agent |
| Published | Jun 17, 2026 |
| Last Updated | Jun 17, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected Versions
NousResearch / hermes-agent
0 < 0.16.0
References
github.com: https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5 github.com: https://github.com/NousResearch/hermes-agent/pull/30917 github.com: https://github.com/NousResearch/hermes-agent/pull/31469 github.com: https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8 vulncheck.com: https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-files
Credits
Chia Min Jun Lennon