GHSA-99f9-j8r3-p853
Hermes Agent creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644)
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| PyPI | hermes-agent | < 0.16.0 | 0.16.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2026-53870
- https://github.com/NousResearch/hermes-agent/pull/30917
- https://github.com/NousResearch/hermes-agent/pull/31469
- https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8
- https://github.com/NousResearch/hermes-agent
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5
- https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-files