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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| NousResearch | hermes-agent | 0.16.0 – < 0.17.0, 2026.6.5 – < 2026.6.19 | 0.17.0 |
References
- Hermes Agent v2026.6.19 Release Notes release-notes
- Pull Request issue-tracking patch
- Patch Commit (1) patch
- Patch Commit (2) patch
- https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool third-party-advisory