CVE-2026-82020
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.
Scoring
- Severity
- HIGH
- CVSS base score
- 7.6
- CVSS vector
- CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- EPSS probability
- 0.33%
- CWE
- CWE-552
- Published
- 2026-08-28
- Last modified
- 2026-09-01
Affected products
- NousResearch hermes-agent
- NousResearch hermes-agent
Weakness type
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