{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-19941 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-19941 is a medium-severity 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-2026-19941 and fix it if it is affected.\n\nWhat it is: CVE-2026-19941 is a medium-severity 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-2026-19941 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-2026-19941/ (Markdown: https://insights.sbomify.com/CVE-2026-19941/index.md)","id":"CVE-2026-19941","markdown":"https://insights.sbomify.com/CVE-2026-19941/index.md","name":"CVE-2026-19941","record":{"aliases":["ALPINE-CVE-2026-19941","AZL-103359","BELL-CVE-2026-19941","DEBIAN-CVE-2026-19941","ECHO-9873-7113-c63e","GHSA-38fx-cm5x-27pg","MINI-6h24-9xc7-vqj4","MINI-wx56-m8x3-56cj","MINI-wxh2-g7gh-2qvc","UBUNTU-CVE-2026-19941"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"BIND DNS server","requires_auth":"none","summary":"Attackers can mask wildcard records by exploiting NSEC validation flaws in BIND, potentially hiding DNS data from resolvers.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"An inapplicable NSEC record may be accepted by a `named` resolver as proof that no wildcard exists, which could allow an attacker at the same or an upstream level of the zone name to mask the existence of a victim's wildcard record.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.27, 9.21.0 through 9.21.25, 9.11.3-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":"checkwildcard() accepts an out-of-zone NSEC as a wildcard-nonexistence proof","id":"CVE-2026-19941","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"Atarim \u003c= 5.1.1 - Authenticated (Author+) Arbitrary File Deletion via '_wp_attached_file' Meta","id":"CVE-2026-19942"},"packages":[],"prev":{"headline":"Use after free in zephyr","id":"CVE-2026-19940"},"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["ISC"]},"summary":"Attackers can mask wildcard records by exploiting NSEC validation flaws in BIND, potentially hiding DNS data from resolvers.","url":"https://insights.sbomify.com/CVE-2026-19941/"}