{"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-2026-9353 exists.","fix":"Upgrade hermes-agent to 0.15.0 or later.","what":"CVE-2026-9353 is a medium-severity code injection vulnerability in NousResearch hermes-agent, published on 24 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-9353 and fix it if it is affected.\n\nWhat it is: CVE-2026-9353 is a medium-severity code injection vulnerability in NousResearch hermes-agent, published on 24 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-9353 exists.\n\nAffected packages and fixed versions:\n- hermes-agent (PyPI): affected all versions; fixed in 0.15.0\n- hermes-agent (PyPI): affected all versions; fixed in 0.15.0\n- hermes-agent (PyPI): affected all versions; fixed in 0.15.0\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-2026-9353/ (Markdown: https://insights.sbomify.com/CVE-2026-9353/index.md)","id":"CVE-2026-9353","markdown":"https://insights.sbomify.com/CVE-2026-9353/index.md","name":"CVE-2026-9353","record":{"aliases":["GHSA-238w-f66p-w349","PYSEC-2026-2509"],"analysis":{"component_type":"library","fix_type":"no_fix_stated","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python AI agent library","requires_auth":"none","summary":"Remote attackers can execute arbitrary code via injection in the Skills Guard component of the hermes-agent library.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-74","name":"Improper Neutralization of Special Elements in Output Used by a Downstream Component"},{"id":"CWE-707","name":"Improper Neutralization"}],"description":"A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.23. Impacted is an unknown function of the file agent/skills_guard.py of the component Skills Guard Multi-Word Prompt Handler. The manipulation of the argument THREAT_PATTERNS leads to injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","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":"NousResearch hermes-agent Skills Guard Multi-Word Prompt skills_guard.py injection","id":"CVE-2026-9353","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"NousResearch hermes-agent Slack Agent/Mattermost Agent escape output","id":"CVE-2026-9354"},"packages":[{"ecosystem":"PyPI","fixed":["0.15.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":null,"source":"GHSA-238w-f66p-w349"},{"ecosystem":"PyPI","fixed":["0.15.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"GHSA-238w-f66p-w349"},{"ecosystem":"PyPI","fixed":["0.15.0"],"introduced":["0"],"last_affected":[],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"PYSEC-2026-2509"}],"prev":{"headline":"NousResearch hermes-agent Messaging Gateway local.py _make_run_env information disclosure","id":"CVE-2026-9352"},"products":["hermes-agent"],"published":"2026-05-24","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-26","vendors":["NousResearch"]},"summary":"Remote attackers can execute arbitrary code via injection in the Skills Guard component of the hermes-agent library.","url":"https://insights.sbomify.com/CVE-2026-9353/"}