CVE-2026-82020 | BDVDB-2026-366148 Detail
NousResearchhermes-agent
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.
Weaknesses#
- CWE-552 Files or Directories Accessible to External Parties
References#
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19
- https://github.com/NousResearch/hermes-agent/pull/45821
- https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59
- https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5
- https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.