{"answers":{"affected":"2 open source packages ship an affected version, including hickory-resolver.","exploited":"There is no known exploitation of CVE-2026-93657 in the wild and no public exploit code.","fix":"Upgrade hickory-resolver to 0.26.2 or later.","what":"CVE-2026-93657 is a high-severity vulnerability in hickory-dns hickory-resolver, published on 18 Sep 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-2026-93657 and fix it if it is affected.\n\nWhat it is: CVE-2026-93657 is a high-severity vulnerability in hickory-dns hickory-resolver, published on 18 Sep 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-2026-93657 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hickory-resolver (crates.io): affected all versions; fixed in 0.26.2\n- hickory-resolver (crates.io): affected all versions; fixed in 0.26.2\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-2026-93657/ (Markdown: https://insights.sbomify.com/CVE-2026-93657/index.md)","id":"CVE-2026-93657","markdown":"https://insights.sbomify.com/CVE-2026-93657/index.md","name":"CVE-2026-93657","record":{"aliases":["DEBIAN-CVE-2026-93657","GHSA-5j98-2g5x-46v6","GHSA-884w-h442-q7ph","MINI-4qqv-5v7v-rhj5","MINI-79pv-pf94-mj5h","MINI-85w9-8m26-4phr","MINI-8rwr-g737-x432","MINI-8rxj-4v4v-9p7x","MINI-9h5f-qmwr-hcmh","MINI-m64w-h6rx-q4w5","MINI-m6rx-jcwm-fp8v","MINI-mq2p-h54g-993m","MINI-qcr4-3x4p-wv4p","MINI-r636-xvr4-h9m4","MINI-vmgr-6rxq-p2qv","MINI-vrmc-f86q-mwxq","MINI-ww6v-59j8-7crc","MINI-wwhr-2h3x-6gp6","MINI-xqfh-x4v3-jq4r","UBUNTU-CVE-2026-93657"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust DNS resolver library","requires_auth":"none","summary":"Attackers can bypass DNSSEC validation in hickory-resolver, causing forged DNS records to be accepted as valid by applications using the library.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"hickory-resolver versions before 0.26.2 fail to propagate bogus DNSSEC proof states through the Resolver::lookup() and Resolver::lookup_ip() APIs, allowing invalid records to be returned as successful results. Attackers controlling the answering zone or positioned on the network path can have forged DNS records accepted as validated, bypassing DNSSEC authentication checks.","ecosystems":["crates.io"],"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-resolver before 0.26.2 DNSSEC Validation Bypass","id":"CVE-2026-93657","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":2,"n_references":6,"next":{"headline":"uutils coreutils 0.0.18 before 0.10.0 Privilege Escalation via setuid","id":"CVE-2026-93658"},"packages":[{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0"],"last_affected":[],"package":"hickory-resolver","purl":null,"source":"GHSA-5j98-2g5x-46v6"},{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0"],"last_affected":[],"package":"hickory-resolver","purl":"pkg:cargo/hickory-resolver","source":"GHSA-5j98-2g5x-46v6"}],"prev":{"headline":"User Profile Builder \u003c= 4.0.2 - Authenticated (Subscriber+) Stored Cross-Site Scripting via Avatar Field","id":"CVE-2026-93656"},"products":["hickory-resolver"],"published":"2026-09-18","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-21","vendors":["hickory-dns"]},"summary":"Attackers can bypass DNSSEC validation in hickory-resolver, causing forged DNS records to be accepted as valid by applications using the library.","url":"https://insights.sbomify.com/CVE-2026-93657/"}