{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-123583 in the wild and no public exploit code.","exposure":"","fix":"Upgrade to a fixed version.","what":"CVE-2026-123583 is a medium-severity vulnerability in hickory-dns, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123583 and fix it if it is affected.\n\nWhat it is: CVE-2026-123583 is a medium-severity vulnerability in hickory-dns, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123583 in the wild and no public exploit code.\n\nAffected product: hickory-dns. 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-2026-123583/ (Markdown: https://insights.sbomify.com/CVE-2026-123583/index.md)","id":"CVE-2026-123583","markdown":"https://insights.sbomify.com/CVE-2026-123583/index.md","name":"CVE-2026-123583","record":{"aliases":["DEBIAN-CVE-2026-123583","GHSA-cc99-m754-hh53","GHSA-vcjp-57rr-mpfw","UBUNTU-CVE-2026-123583"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-349","name":"Acceptance of Extraneous Untrusted Data With Trusted Data"}],"description":"The recursive resolver in Hickory DNS hickory-recursor 0.25.0 through 0.25.2 and hickory-resolver 0.26.0 before 0.26.2 does not apply out-of-bailiwick filtering to negative responses. Attackers able to supply crafted negative responses can include out-of-bailiwick records to facilitate cache poisoning and more easily exploit other DNSSEC verification flaws.","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":"Hickory DNS 0.25.0 through 0.25.2 Missing Bailiwick Filtering on Negative Responses","id":"CVE-2026-123583","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Hickory-DNS 0.26.0 before 0.26.2 UDP Client Denial of Service via Spoofed Responses","id":"CVE-2026-123584"},"nickname":null,"packages":[],"prev":{"headline":"Hickory DNS 0.25.0 before 0.26.2 DNSSEC Validation Bypass via SOA Record","id":"CVE-2026-123582"},"products":["hickory-dns"],"published":"2026-11-08","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-11-08","vendors":["hickory-dns"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123583/"}