{"answers":{"affected":"1 open source package ship an affected version, including hickory-proto.","exploited":"There is no known exploitation of CVE-2026-123574 in the wild and no public exploit code.","exposure":"","fix":"Upgrade hickory-proto to 0.26.2 or later.","what":"CVE-2026-123574 is a high-severity vulnerability in hickory-dns, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123574 and fix it if it is affected.\n\nWhat it is: CVE-2026-123574 is a high-severity vulnerability in hickory-dns, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123574 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hickory-proto (crates.io): affected from 0.24.0; 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/CVE-2026-123574/ (Markdown: https://insights.sbomify.com/CVE-2026-123574/index.md)","id":"CVE-2026-123574","markdown":"https://insights.sbomify.com/CVE-2026-123574/index.md","name":"CVE-2026-123574","record":{"aliases":["DEBIAN-CVE-2026-123574","GHSA-29xw-595w-jfj7","GHSA-4rph-pmrw-mwpw","RUSTSEC-2026-0490","UBUNTU-CVE-2026-123574"],"analysis":null,"analysis_generated_by":null,"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:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-20","name":"Improper Input Validation"}],"description":"The zone file parser in the hickory-proto crate of Hickory DNS 0.24.0 before 0.26.2 panics when a single token in a zone file is 4096 bytes or longer. Attackers who can supply untrusted zone files to an application using the parser can trigger the panic to cause a denial of service.","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 DNS 0.24.0 before 0.26.2 Denial of Service via Zone File Parser","id":"CVE-2026-123574","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":2,"next":{"headline":"Hickory DNS before 0.26.2 DoH Memory Exhaustion via Incomplete Request Bodies","id":"CVE-2026-123575"},"nickname":null,"packages":[{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0.24.0"],"last_affected":[],"package":"hickory-proto","purl":"pkg:cargo/hickory-proto","source":"RUSTSEC-2026-0490"}],"prev":{"headline":"hickory-dns from 0.20.1 before 0.26.2 Panic in SVCB/HTTPS Zone File Parser","id":"CVE-2026-123573"},"products":["hickory-dns"],"published":"2026-11-08","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"open","licence":"CC0 1.0","name":"RustSec","prefix":"RUSTSEC"},{"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":"2026-11-09","vendors":["hickory-dns"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123574/"}