{"answers":{"affected":"1 open source package ship an affected version, including hickory-proto.","exploited":"There is no known exploitation of CVE-2026-123572 in the wild and no public exploit code.","exposure":"","fix":"Upgrade hickory-proto to 0.26.2 or later.","what":"CVE-2026-123572 is a high-severity vulnerability in hickory-dns, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123572 and fix it if it is affected.\n\nWhat it is: CVE-2026-123572 is a high-severity vulnerability in hickory-dns, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123572 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- hickory-proto (crates.io): affected from 0.20.1; 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-2026-123572/ (Markdown: https://insights.sbomify.com/CVE-2026-123572/index.md)","id":"CVE-2026-123572","markdown":"https://insights.sbomify.com/CVE-2026-123572/index.md","name":"CVE-2026-123572","record":{"aliases":["DEBIAN-CVE-2026-123572","GHSA-hx8c-fjhc-hmf5","GHSA-j8hx-pr94-c5mv","RUSTSEC-2026-0487","UBUNTU-CVE-2026-123572"],"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-1286","name":"Improper Validation of Syntactic Correctness of Input"}],"description":"Hickory-dns from 0.20.1 before 0.26.2 contains a denial of service vulnerability in the hickory-proto SVCB and HTTPS record presentation format parser, which panics on malformed alpn values. Attackers can supply untrusted zone files with unbalanced quotes, consecutive commas, or invalid escapes in alpn parameters to crash parsing processes.","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 0.20.1 before 0.26.2 Panic DoS via SVCB/HTTPS Zone Parser","id":"CVE-2026-123572","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 from 0.20.1 before 0.26.2 Panic in SVCB/HTTPS Zone File Parser","id":"CVE-2026-123573"},"nickname":null,"packages":[{"ecosystem":"crates.io","fixed":["0.26.2"],"introduced":["0.20.1"],"last_affected":[],"package":"hickory-proto","purl":"pkg:cargo/hickory-proto","source":"RUSTSEC-2026-0487"}],"prev":{"headline":"Hickory DNS from 0.26.0 before 0.26.2 Panic via TSIG RDATA Decoding","id":"CVE-2026-123571"},"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":"2026-11-12","vendors":["hickory-dns"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123572/"}