{"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-2026-10221 exists.","fix":"No fix has been published for CVE-2026-10221 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-10221 is a medium-severity code injection vulnerability in NousResearch hermes-agent, published on 1 Jun 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-2026-10221 and fix it if it is affected.\n\nWhat it is: CVE-2026-10221 is a medium-severity code injection vulnerability in NousResearch hermes-agent, published on 1 Jun 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-2026-10221 exists.\n\nAffected packages and fixed versions:\n- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed\n- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed\n- hermes-agent (PyPI): affected all versions up to 0.19.0; no fix listed\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-2026-10221/ (Markdown: https://insights.sbomify.com/CVE-2026-10221/index.md)","id":"CVE-2026-10221","markdown":"https://insights.sbomify.com/CVE-2026-10221/index.md","name":"CVE-2026-10221","record":{"aliases":["GHSA-xq8w-9jvx-gm3v","PYSEC-2026-3577"],"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 hermes-agent library's context compression function.","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 vulnerability was identified in NousResearch hermes-agent up to 0.12.0. Affected by this vulnerability is the function _compress_context of the file run_agent.py. The manipulation leads to injection. It is possible to initiate the attack remotely. The exploit is publicly available and might 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":false,"headline":"NousResearch hermes-agent run_agent.py _compress_context injection","id":"CVE-2026-10221","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"NousResearch hermes-agent config.py _sanitize_env_lines injection","id":"CVE-2026-10222"},"packages":[{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.19.0"],"package":"hermes-agent","purl":null,"source":"GHSA-xq8w-9jvx-gm3v"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.19.0"],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"GHSA-xq8w-9jvx-gm3v"},{"ecosystem":"PyPI","fixed":[],"introduced":["0"],"last_affected":["0.19.0"],"package":"hermes-agent","purl":"pkg:pypi/hermes-agent","source":"PYSEC-2026-3577"}],"prev":{"headline":"NousResearch hermes-agent skills_tool.py skill_view injection","id":"CVE-2026-10220"},"products":["hermes-agent"],"published":"2026-06-01","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":"2026-06-03","vendors":["NousResearch"]},"summary":"Remote attackers can execute arbitrary code via injection in the hermes-agent library's context compression function.","url":"https://insights.sbomify.com/CVE-2026-10221/"}