{"answers":{"affected":"2 open source packages ship an affected version, including netavark. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-35406 in the wild and no public exploit code.","fix":"Upgrade netavark to 1.17.1 or later.","what":"CVE-2026-35406 is a medium-severity denial of service vulnerability in containers aardvark-dns, published on 7 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-35406 and fix it if it is affected.\n\nWhat it is: CVE-2026-35406 is a medium-severity denial of service vulnerability in containers aardvark-dns, published on 7 Apr 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-35406 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- netavark (crates.io): affected from 1.16.0; fixed in 1.17.1\n- netavark (crates.io): affected from 1.16.0; fixed in 1.17.1\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-2026-35406/ (Markdown: https://insights.sbomify.com/CVE-2026-35406/index.md)","id":"CVE-2026-35406","markdown":"https://insights.sbomify.com/CVE-2026-35406/index.md","name":"CVE-2026-35406","record":{"aliases":["ALSA-2026:36318","ALSA-2026:36782","BELL-CVE-2026-35406","DEBIAN-CVE-2026-35406","GHSA-hfpq-x728-986j","RHSA-2026:36318","RHSA-2026:36782","RLSA-2026:36318","RLSA-2026:36782","UBUNTU-CVE-2026-35406","openSUSE-SU-2026:10570-1"],"analysis":{"component_type":"container_or_infrastructure","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Container DNS server","requires_auth":"none","summary":"A malformed TCP packet sequence causes the Aardvark-dns container service to enter an infinite loop, consuming all CPU resources and denying service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"aardvark-dns","vendor":"containers"}],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"},{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.","ecosystems":["AlmaLinux:10","AlmaLinux:9","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:9::appstream","Rocky Linux:10","Rocky Linux:9","crates.io","openSUSE:Tumbleweed"],"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":"Aardvark-dns has incorrect error handling for malformed tcp packets","id":"CVE-2026-35406","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"crates.io","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":13,"n_references":3,"next":{"headline":"Saleor has Cross-Account Email Change via Unbound Confirmation Token","id":"CVE-2026-35407"},"packages":[{"ecosystem":"crates.io","fixed":["1.17.1"],"introduced":["1.16.0"],"last_affected":[],"package":"netavark","purl":null,"source":"GHSA-hfpq-x728-986j"},{"ecosystem":"crates.io","fixed":["1.17.1"],"introduced":["1.16.0"],"last_affected":[],"package":"netavark","purl":"pkg:cargo/netavark","source":"GHSA-hfpq-x728-986j"},{"ecosystem":"AlmaLinux:10","fixed":["2:1.17.1-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/almalinux/aardvark-dns","source":"ALSA-2026:36782"},{"ecosystem":"AlmaLinux:9","fixed":["2:1.17.1-1.el9_8"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/almalinux/aardvark-dns","source":"ALSA-2026:36318"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:1.17.1-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/redhat/aardvark-dns","source":"RHSA-2026:36782"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:1.17.1-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns-debuginfo","purl":"pkg:rpm/redhat/aardvark-dns-debuginfo","source":"RHSA-2026:36782"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["2:1.17.1-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns-debugsource","purl":"pkg:rpm/redhat/aardvark-dns-debugsource","source":"RHSA-2026:36782"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.17.1-1.el9_8"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/redhat/aardvark-dns","source":"RHSA-2026:36318"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.17.1-1.el9_8"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns-debuginfo","purl":"pkg:rpm/redhat/aardvark-dns-debuginfo","source":"RHSA-2026:36318"},{"ecosystem":"Red Hat:enterprise_linux:9::appstream","fixed":["2:1.17.1-1.el9_8"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns-debugsource","purl":"pkg:rpm/redhat/aardvark-dns-debugsource","source":"RHSA-2026:36318"},{"ecosystem":"Rocky Linux:10","fixed":["2:1.17.1-1.el10_2"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/rocky-linux/aardvark-dns?distro=rocky-linux-10\u0026epoch=2","source":"RLSA-2026:36782"},{"ecosystem":"Rocky Linux:9","fixed":["2:1.17.1-1.el9_8"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/rocky-linux/aardvark-dns?distro=rocky-linux-9\u0026epoch=2","source":"RLSA-2026:36318"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["1.17.1-1.1"],"introduced":["0"],"last_affected":[],"package":"aardvark-dns","purl":"pkg:rpm/opensuse/aardvark-dns\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10570-1"}],"prev":{"headline":"libp2p-rendezvous: Unlimited namespace registrations per peer enables OOM DoS on rendezvous servers","id":"CVE-2026-35405"},"products":["aardvark-dns"],"published":"2026-04-07","related":[{"cvss_score":7.5,"headline":"Containers/aardvark-dns: tcp query handling flaw in aardvark-dns leading to denial of service","id":"CVE-2024-8418","kev_date_added":null,"published":"2024-09-04"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"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":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"class":"attribution","licence":"BSD","name":"Rocky Linux","prefix":"RLSA"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-04-08","vendors":["containers"]},"summary":"A malformed TCP packet sequence causes the Aardvark-dns container service to enter an infinite loop, consuming all CPU resources and denying service.","url":"https://insights.sbomify.com/CVE-2026-35406/"}