{"answers":{"affected":"2 open source packages ship an affected version, including hickory-resolver.","exploited":"There is no known exploitation of GHSA-6f2x-v7q7-m7m5 in the wild and no public exploit code.","fix":"Upgrade hickory-resolver to 0.26.2 or later.","what":"GHSA-6f2x-v7q7-m7m5 is a denial of service vulnerability in hickory-resolver, published on 5 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for GHSA-6f2x-v7q7-m7m5 and fix it if it is affected.\n\nWhat it is: GHSA-6f2x-v7q7-m7m5 is a denial of service vulnerability in hickory-resolver, published on 5 Oct 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 GHSA-6f2x-v7q7-m7m5 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hickory-resolver (crates.io): affected from 0.25.0; fixed in 0.26.2\n- hickory-resolver (crates.io): affected from 0.25.0; 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/GHSA-6f2x-v7q7-m7m5/ (Markdown: https://insights.sbomify.com/GHSA-6f2x-v7q7-m7m5/index.md)","id":"GHSA-6f2x-v7q7-m7m5","markdown":"https://insights.sbomify.com/GHSA-6f2x-v7q7-m7m5/index.md","name":"GHSA-6f2x-v7q7-m7m5","record":{"aliases":[],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Rust DNS resolver","requires_auth":"none","summary":"The Hickory DNS resolver library sends unnecessary queries for irrelevant CNAME records, enabling query amplification and potential denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":null,"cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"When the Hickory DNS resolver follows CNAME records, it sends queries that are not necessary to answer the original recursive query. If there are any CNAME records in the authority section or additional section of the response, queries will be sent for those names. If there are any CNAME records that are not part of a CNAME chain starting from the original recursive query name, queries will be sent for those names. This increases query amplification beyond what is necessary to answer the recursive query.","ecosystems":["crates.io"],"exploits":{"exploitdb":null,"first_seen":null,"github_poc":null,"max_poc_stars":null,"metasploit":null,"nuclei":null,"refs":[],"tier":null},"has_fix":true,"headline":"hickory-resolver follows irrelevant CNAME records","id":"GHSA-6f2x-v7q7-m7m5","indexable":true,"kev":null,"kind":"advisory","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":null,"packages":[{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0.25.0"],"last_affected":[],"package":"hickory-resolver","purl":null,"source":"GHSA-6f2x-v7q7-m7m5"},{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0.25.0"],"last_affected":[],"package":"hickory-resolver","purl":"pkg:cargo/hickory-resolver","source":"GHSA-6f2x-v7q7-m7m5"}],"products":null,"published":"2026-10-05","related":[],"sources":[{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":null,"updated":null,"vendors":null},"summary":"The Hickory DNS resolver library sends unnecessary queries for irrelevant CNAME records, enabling query amplification and potential denial of service.","url":"https://insights.sbomify.com/GHSA-6f2x-v7q7-m7m5/"}