CVE-2026-53870 (GCVE-0-2026-53870)
Vulnerability from cvelistv5 – Published: 2026-06-17 17:57 – Updated: 2026-10-08 15:23 X_Open Source
VLAI
EPSS
VEX
Title
Hermes Agent < 0.16.0 - Sensitive File Permission Vulnerability in Store Files
Summary
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.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 18:39 UTC
CWE
- CWE-276 - Incorrect Default Permissions
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/NousResearch/hermes-agent/rele… | release-notes |
| https://github.com/NousResearch/hermes-agent/pull/30917 | issue-tracking |
| https://github.com/NousResearch/hermes-agent/pull/31469 | issue-tracking |
| https://github.com/NousResearch/hermes-agent/comm… | patch |
| https://www.vulncheck.com/advisories/hermes-agent… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| NousResearch | hermes-agent |
Affected:
0 , < 0.16.0
(semver)
Unaffected: 0.16.0 (semver) |
guessed |
Date Public
2026-05-24 00:00
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