{"answers":{"affected":"3 open source packages ship an affected version, including hermes-agent.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53870 exists.","fix":"Upgrade hermes-agent to 0.16.0 or later.","what":"CVE-2026-53870 is a medium-severity vulnerability in NousResearch hermes-agent, published on 17 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-53870 and fix it if it is affected.\n\nWhat it is: CVE-2026-53870 is a medium-severity vulnerability in NousResearch hermes-agent, published on 17 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53870 exists.\n\nAffected packages and fixed versions:\n- hermes-agent (PyPI): affected all versions; fixed in 0.16.0\n- hermes-agent (PyPI): affected all versions; fixed in 0.16.0\n- hermes-agent (PyPI): affected all versions; fixed in 0.16.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-53870/ (Markdown: https://insights.sbomify.com/CVE-2026-53870/index.md)","id":"CVE-2026-53870","markdown":"https://insights.sbomify.com/CVE-2026-53870/index.md","name":"CVE-2026-53870","record":{"aliases":["GHSA-99f9-j8r3-p853","PYSEC-2026-2511"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python agent library","requires_auth":"low_privilege","summary":"Local attackers can read sensitive conversation history and HMAC secrets from Hermes Agent store files due to insecure file permissions.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.8,"severity":"medium","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-276","name":"Incorrect Default Permissions"}],"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.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Hermes Agent \u003c 0.16.0 - Sensitive File Permission Vulnerability in Store Files","id":"CVE-2026-53870","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"Hermes WebUI \u003c 0.51.368 - Profile-Scoped Authorization Bypass via Forged hermes_profile Cookie","id":"CVE-2026-53871"},"packages":[{"ecosystem":"PyPI","fixed":["0.16.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":null,"source":"GHSA-99f9-j8r3-p853"},{"ecosystem":"PyPI","fixed":["0.16.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"GHSA-99f9-j8r3-p853"},{"ecosystem":"PyPI","fixed":["0.16.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"PYSEC-2026-2511"}],"prev":{"headline":"Hermes Agent \u003c 0.16.0 - DNS Rebinding Bypass via WebSocket Endpoints","id":"CVE-2026-53869"},"products":["hermes-agent"],"published":"2026-06-17","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-08","vendors":["NousResearch"]},"summary":"Local attackers can read sensitive conversation history and HMAC secrets from Hermes Agent store files due to insecure file permissions.","url":"https://insights.sbomify.com/CVE-2026-53870/"}