{"cve":"CVE-2026-53870","nvd":{"published":"2026-06-17T19:18:10.883","modified":"2026-10-26T11:10:00.157","status":"Deferred","description":"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.","cvss_v4":{"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","score":6.8},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","score":5.5},"cwes":["CWE-276"],"references":["https://github.com/NousResearch/hermes-agent/commit/3bace071bfadf2d2bec2ee048471a31ec920e3e8","https://github.com/NousResearch/hermes-agent/pull/30917","https://github.com/NousResearch/hermes-agent/pull/31469","https://github.com/NousResearch/hermes-agent/releases/tag/v2026.6.5","https://www.vulncheck.com/advisories/hermes-agent-sensitive-file-permission-vulnerability-in-store-files"],"products":[],"source":"nvd","synced_at":"2026-10-26T11:33:08.859761529+00:00"},"epss":{"cve":"CVE-2026-53870","score":0.0016,"percentile":0.05108,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-99f9-j8r3-p853","url":"https://osv.dev/vulnerability/GHSA-99f9-j8r3-p853","summary":"Hermes Agent creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644)","modified":"2026-07-13T16:42:53.061556120Z","packages":[{"ecosystem":"PyPI","name":"hermes-agent","purl":"pkg:pypi/hermes-agent","ranges":["<0.16.0"],"fixed":["0.16.0"]}]},{"id":"PYSEC-2026-2511","url":"https://osv.dev/vulnerability/PYSEC-2026-2511","summary":"Hermes Agent creates response_store.db and webhook_subscriptions.json with world-readable permissions (mode 0o644)","modified":"2026-07-13T16:31:56.301521107Z","packages":[{"ecosystem":"PyPI","name":"hermes-agent","purl":"pkg:pypi/hermes-agent","ranges":["<0.16.0"],"fixed":["0.16.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}