Vulnerability 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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda
- https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a
- https://github.com/NousResearch/hermes-agent/pull/45821
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19
- https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via
FAQ
What is CVE-2026-82020?
CVE-2026-82020 is a vulnerability with a CVSS score of 6.8 (MEDIUM). 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 ...
How severe is CVE-2026-82020?
CVE-2026-82020 has been rated MEDIUM with a CVSS base score of 6.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-82020?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.