{"schema":"threatline.record/2","record":{"id":"CVE-2026-96405","aliases":[],"summary":"Aggregate DNS name chained pointer decompression work leads to degradation of service.","details":"NLnet Labs Unbound up to and including version 1.26.1 limits compression-pointer traversal for each individual domain-name operation but has no aggregate inbound decompression-work budget. Many chained compression pointers in a message results in a lot of CPU usage following them. A malicious actor with recursive-query access and control of an ordinarily delegated authority that serves specially crafted replies can exploit the vulnerability and degrade Unbound's general performance.","categories":["Unclassified"],"product":"Unbound","vendor":"NLnet Labs","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-96405","source_modified_at":"2026-10-21T08:57:26.986Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Unbound","vendor":"NLnet Labs","versions":[{"version":"0","status":"affected","lessThan":"1.26.2","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-96405","source_modified_at":"2026-10-21T08:57:26.986Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Unbound","ecosystem":null},"version":"1.26.2","basis":"first unaffected version stated in the CVE record"}],"cvss":5.3,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.00238,"percentile":0.13981,"score_date":"2026-10-23"},"published_at":"2026-10-21T08:57:26.986Z","modified_at":"2026-10-21T08:57:26.986Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-96405","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T08:57:26.986Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-96405","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://www.nlnetlabs.nl/downloads/unbound/CVE-2026-96405.txt","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-21T08:57:26.986Z","content_hash":"f7917f3d640f5e6314e1d1820b60e7ba44471b1f39fc34a2376611aee5dd3eef"}}