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NVD Vulnerability Details :
CVE-2026-53870
Deferred
More InfoOfficial Page
Source-disclosure@vulncheck.com
View Known Exploited Vulnerability (KEV) details
Published At-17 Jun, 2026 | 19:18
Updated At-17 Jun, 2026 | 20:21

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.06.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Secondary3.15.5MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
N/A
Type: Secondary
Version: 4.0
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/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
Type: Secondary
Version: 3.1
Base score: 5.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Type: N/A
Version:
Base score:
Base severity: N/A
Vector:
CPE Matches
Weaknesses
CWE IDTypeSource
CWE-276Secondarydisclosure@vulncheck.com
CWE ID: CWE-276
Type: Secondary
Source: disclosure@vulncheck.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8disclosure@vulncheck.com
N/A
https://github.com/NousResearch/hermes-agent/pull/30917disclosure@vulncheck.com
N/A
https://github.com/NousResearch/hermes-agent/pull/31469disclosure@vulncheck.com
N/A
https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5disclosure@vulncheck.com
N/A
https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-filesdisclosure@vulncheck.com
N/A
https://github.com/NousResearch/hermes-agent/pull/30917134c704f-9b21-4f2e-91b3-4a467353bcc0
N/A
Hyperlink: https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/NousResearch/hermes-agent/pull/30917
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/NousResearch/hermes-agent/pull/31469
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-files
Source: disclosure@vulncheck.com
Resource: N/A
Hyperlink: https://github.com/NousResearch/hermes-agent/pull/30917
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Resource: N/A
Change History
0Changes found
Details not found