{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-50106 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-50106 is a medium-severity vulnerability in NLnet Labs Unbound, published on 21 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-50106 and fix it if it is affected.\n\nWhat it is: CVE-2026-50106 is a medium-severity vulnerability in NLnet Labs Unbound, published on 21 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-50106 in the wild and no public exploit code.\n\nAffected product: NLnet Labs Unbound. 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-2026-50106/ (Markdown: https://insights.sbomify.com/CVE-2026-50106/index.md)","id":"CVE-2026-50106","markdown":"https://insights.sbomify.com/CVE-2026-50106/index.md","name":"CVE-2026-50106","record":{"aliases":["AZL-110531","DEBIAN-CVE-2026-50106","ECHO-2c39-6a3d-2a23","GHSA-pj55-6fvm-845h","UBUNTU-CVE-2026-50106"],"analysis":null,"analysis_generated_by":null,"assigner":"NLnet Labs","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H","version":"3.1"},"cwes":[{"id":"CWE-807","name":"Reliance on Untrusted Inputs in a Security Decision"}],"description":"When NLnet Labs Unbound up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for an island-of-security zone whose parent is provably insecure under the root chain, a malicious actor who can deliver one forged NXDOMAIN response for a name inside the island, with the NSEC/SOA RRSIG 'SignerName' set to the insecure parent, tricks Unbound's validator to use the root trust anchor instead, and consecutively the insecure parent, thus causing that record to be treated as insecure and denying existence for records in the trust island.","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":"When NLnet Labs Unbound up to and including version 1.26.1 is configured with both a root trust anchor and an additional 'trust-anchor:' for","id":"CVE-2026-50106","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"NGINX Gateway Fabric vulnerability","id":"CVE-2026-50107"},"packages":[],"prev":{"headline":"RSS/Atom feed handlers bypass API-token scope \u0026 public-only confinement (incomplete fix of #37698)","id":"CVE-2026-50105"},"products":["Unbound"],"published":"2026-10-21","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":"2026-10-29","vendors":["NLnet Labs"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-50106/"}