CVEvulnerability
CVE-2026-82020
7.6 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-28
- Last modified
- 2026-09-08
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.6 HIGH — 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-552
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.
Related
Weakness · CWE (1)
- CWE-552 Files or Directories Accessible to External Parties weakness
References
- https://github.com/NousResearch/hermes-agent/commit/2b67e96aec2aa2abd5e94b544cda8e564c75f9f5 github.com
- https://github.com/NousResearch/hermes-agent/commit/da28d5d113956dcf803d5cff552a120740a96a59 github.com
- https://github.com/NousResearch/hermes-agent/pull/45821 github.com
- https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.19 github.com
- https://www.vulncheck.com/advisories/hermes-agent-credential-store-overwrite-via-file-write-tool www.vulncheck.com