CVE-2026-53870

Source
https://cve.org/CVERecord?id=CVE-2026-53870
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53870.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-53870
Aliases
Published
2026-06-17T17:57:58Z
Modified
2026-08-12T03:51:08Z
Severity
  • 6.8 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
Hermes Agent < 0.16.0 - Sensitive File Permission Vulnerability in Store Files
Details

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.

Database specific
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-276"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53870.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "fixed": "0.16.0"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "fixed": "0.16.0"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/nousresearch/hermes-agent

Affected ranges

Type
GIT
Repo
https://github.com/nousresearch/hermes-agent
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Fixed
Database specific
Show details
{
    "source": "REFERENCES"
}

Affected versions

v2026.*
v2026.3.12
v2026.3.17
v2026.3.23
v2026.3.28
v2026.3.30
v2026.4.13
v2026.4.16
v2026.4.23
v2026.4.3
v2026.4.30
v2026.4.8
v2026.5.16
v2026.5.28
v2026.5.29
v2026.5.7

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53870.json"