{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-52684 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-52684 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-52684 is a low-severity vulnerability in PowerDNS Recursor, published on 23 Jul 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-2026-52684 and fix it if it is affected.\n\nWhat it is: CVE-2026-52684 is a low-severity vulnerability in PowerDNS Recursor, published on 23 Jul 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-2026-52684 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-2026-52684/ (Markdown: https://insights.sbomify.com/CVE-2026-52684/index.md)","id":"CVE-2026-52684","markdown":"https://insights.sbomify.com/CVE-2026-52684/index.md","name":"CVE-2026-52684","record":{"aliases":["DEBIAN-CVE-2026-52684","GHSA-j58f-rgm2-v2p8","UBUNTU-CVE-2026-52684"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS recursor","requires_auth":"none","summary":"Attackers can poison the DNS cache by exploiting a TTL capping flaw in the prefetch feature, leading to persistent incorrect domain resolutions.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"OX","cpe":[],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N","version":"3.1"},"cwes":[],"description":"If the auth responds very slowly and the records expire in between, the capping of TTLs is not enforced for lack of data. This does not happen on regular resolve as then then the \nchild records are used immediately if not expired and thus valid, or the\n records are expired, and in that case not used.  So this case \ncan only happen if almost expired records are used to refresh the \nauthoritative NS records.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Prefetch Feature Allows Persistent Ghost Domain Cache Poisoning Attack","id":"CVE-2026-52684","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Wildcard CNAME proof validation bypass","id":"CVE-2026-52686"},"packages":[],"prev":{"headline":"Denial of service in OX Dovecot CE","id":"CVE-2026-52681"},"products":["Recursor"],"published":"2026-07-23","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-23","vendors":["PowerDNS"]},"summary":"Attackers can poison the DNS cache by exploiting a TTL capping flaw in the prefetch feature, leading to persistent incorrect domain resolutions.","url":"https://insights.sbomify.com/CVE-2026-52684/"}