{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-81736 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-81736 is a high-severity denial of service vulnerability in ISC BIND 9, published on 16 Sep 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-2026-81736 and fix it if it is affected.\n\nWhat it is: CVE-2026-81736 is a high-severity denial of service vulnerability in ISC BIND 9, published on 16 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-81736 in the wild and no public exploit code.\n\nAffected product: ISC BIND 9. 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-2026-81736/ (Markdown: https://insights.sbomify.com/CVE-2026-81736/index.md)","id":"CVE-2026-81736","markdown":"https://insights.sbomify.com/CVE-2026-81736/index.md","name":"CVE-2026-81736","record":{"aliases":["ALPINE-CVE-2026-81736","AZL-103362","BELL-CVE-2026-81736","DEBIAN-CVE-2026-81736","ECHO-dc53-2f42-37f2","GHSA-hjmx-qf9h-v7mw","MINI-cm9x-xpv4-6mwv","MINI-cqrf-mhv2-pp7j","MINI-jv25-q8jv-p39x","UBUNTU-CVE-2026-81736"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"BIND DNS resolver","requires_auth":"none","summary":"Remote attackers can cause excessive CPU consumption in BIND resolvers by querying cached SVCB/HTTPS AliasMode trees, leading to denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-1050","name":"Excessive Platform Resource Consumption within a Loop"}],"description":"If a BIND resolver has cached a tree of SVCB/HTTPS AliasMode records, and is then queried for the root of that tree, the resolver will spend disproportionate CPU time constructing the response.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.18.11-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.27-S1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Remote CPU denial of service through cached SVCB/HTTPS AliasMode trees","id":"CVE-2026-81736","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"FAQ Builder AYS 1.6.3 - 1.8.4 - Unauthenticated Stored XSS via ays_get_user_information","id":"CVE-2026-81737"},"packages":[],"prev":{"headline":"Missing authorization in UI-TARS-desktop","id":"CVE-2026-81735"},"products":["BIND 9"],"published":"2026-09-16","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["ISC"]},"summary":"Remote attackers can cause excessive CPU consumption in BIND resolvers by querying cached SVCB/HTTPS AliasMode trees, leading to denial of service.","url":"https://insights.sbomify.com/CVE-2026-81736/"}