{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-21661 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-21661 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-21661 is a high-severity path traversal vulnerability in Johnson Controls AC2000, published on 6 May 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-2026-21661 and fix it if it is affected.\n\nWhat it is: CVE-2026-21661 is a high-severity path traversal vulnerability in Johnson Controls AC2000, published on 6 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-21661 in the wild and no public exploit code.\n\nAffected product: Johnson Controls AC2000. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-21661/ (Markdown: https://insights.sbomify.com/CVE-2026-21661/index.md)","id":"CVE-2026-21661","markdown":"https://insights.sbomify.com/CVE-2026-21661/index.md","name":"CVE-2026-21661","record":{"aliases":["GHSA-qcgm-qmr8-52ww"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"AC2000 access control","requires_auth":"low_privilege","summary":"An attacker can exploit uncontrolled search paths in Johnson Controls AC2000 to execute arbitrary code on Windows systems.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"jci","cpe":[],"cvss":{"score":8.4,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-427","name":"Uncontrolled Search Path Element"}],"description":"An Uncontrolled Search Path Element vulnerability in JohnsonControls AC2000 on Windows allows Leveraging/Manipulating Configuration File Search Paths.\n\nThis issue affects AC2000: from 10.6 before release 10, from 11.0 before release 9, from 12 before release 3.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"AC2000 Uncontrolled Search Path Element","id":"CVE-2026-21661","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"FMS Employee Allows Upload of Unrestricted Files","id":"CVE-2026-21662"},"packages":[],"prev":{"headline":"Johnson Controls-Frick Quantum HD-Hardcoded Email Credentials Saved as Plaintext in Firmware","id":"CVE-2026-21660"},"products":["AC2000"],"published":"2026-05-06","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-08-24","vendors":["Johnson Controls"]},"summary":"An attacker can exploit uncontrolled search paths in Johnson Controls AC2000 to execute arbitrary code on Windows systems.","url":"https://insights.sbomify.com/CVE-2026-21661/"}