{"answers":{"affected":"3 open source packages ship an affected version, including homeassistant.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91129 exists.","fix":"Upgrade homeassistant to 2026.2.3 or later.","what":"CVE-2026-91129 is a medium-severity vulnerability in home-assistant core, published on 22 Sep 2026."},"fix_prompt":"Check this codebase for CVE-2026-91129 and fix it if it is affected.\n\nWhat it is: CVE-2026-91129 is a medium-severity vulnerability in home-assistant core, published on 22 Sep 2026. \nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-91129 exists.\n\nAffected packages and fixed versions:\n- homeassistant (PyPI): affected all versions; fixed in 2026.2.3\n- homeassistant (PyPI): affected all versions; fixed in 2026.2.3\n- homeassistant (PyPI): affected all versions; fixed in 2026.2.3\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-2026-91129/ (Markdown: https://insights.sbomify.com/CVE-2026-91129/index.md)","id":"CVE-2026-91129","markdown":"https://insights.sbomify.com/CVE-2026-91129/index.md","name":"CVE-2026-91129","record":{"aliases":["GHSA-4ghv-53cq-7wp3","PYSEC-2026-4051"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-918","name":"Server-Side Request Forgery"}],"description":"Home Assistant is open source home automation software focused on local control and privacy. Prior to 2026.2.3, the IPP integration automatically processed unauthenticated _ipp._tcp.local mDNS announcements in homeassistant/components/ipp/config_flow.py, where async_step_zeroconf passed attacker-controlled host, port, and base_path values to validate_input for printer metadata retrieval. Because the shared HTTP client followed attacker-controlled cross-origin redirects without blocking loopback targets, a local-network attacker could redirect the request to 127.0.0.1 or another internal service without user interaction or prior IPP configuration. This issue is fixed in version 2026.2.3.","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":"Home Assistant: mDNS Server-Side Request Forgery","id":"CVE-2026-91129","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"Home Assistant: XSS in Statistics Graph Card","id":"CVE-2026-91130"},"packages":[{"ecosystem":"PyPI","fixed":["2026.2.3"],"introduced":["0"],"last_affected":[],"package":"homeassistant","purl":null,"source":"GHSA-4ghv-53cq-7wp3"},{"ecosystem":"PyPI","fixed":["2026.2.3"],"introduced":["0"],"last_affected":[],"package":"homeassistant","purl":"pkg:pypi/homeassistant","source":"GHSA-4ghv-53cq-7wp3"},{"ecosystem":"PyPI","fixed":["2026.2.3"],"introduced":["0"],"last_affected":[],"package":"homeassistant","purl":"pkg:pypi/homeassistant","source":"PYSEC-2026-4051"}],"prev":{"headline":"File Viewer: DOM XSS via unsafe hyperlink schemes in the legacy DOC renderer","id":"CVE-2026-91127"},"products":["core"],"published":"2026-09-22","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":"2026-09-24","vendors":["home-assistant"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-91129/"}