{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-42387 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-42387 is a medium-severity denial of service vulnerability in PowerDNS Recursor, published on 25 Jun 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-2026-42387 and fix it if it is affected.\n\nWhat it is: CVE-2026-42387 is a medium-severity denial of service vulnerability in PowerDNS Recursor, published on 25 Jun 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-2026-42387 in the wild and no public exploit code.\n\nAffected product: PowerDNS Recursor. 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-2026-42387/ (Markdown: https://insights.sbomify.com/CVE-2026-42387/index.md)","id":"CVE-2026-42387","markdown":"https://insights.sbomify.com/CVE-2026-42387/index.md","name":"CVE-2026-42387","record":{"aliases":["DEBIAN-CVE-2026-42387","GHSA-9v36-5rhx-cq6m","UBUNTU-CVE-2026-42387"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS recursor","requires_auth":"none","summary":"A malicious authoritative server can crash the PowerDNS Recursor by sending a crafted zone due to insufficient input validation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"OX","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:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation.","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":"Insufficient input validation in ZoneToCache","id":"CVE-2026-42387","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Missing input validation for catalog zones","id":"CVE-2026-42388"},"packages":[],"prev":{"headline":"WordPress Order Delivery Date for WooCommerce plugin \u003c= 4.5.1 - SQL Injection vulnerability","id":"CVE-2026-42386"},"products":["Recursor"],"published":"2026-06-25","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":"2026-06-25","vendors":["PowerDNS"]},"summary":"A malicious authoritative server can crash the PowerDNS Recursor by sending a crafted zone due to insufficient input validation.","url":"https://insights.sbomify.com/CVE-2026-42387/"}