{"id":"CVE-2026-35406","aliases":["ALPINE-CVE-2026-35406","ALSA-2026:36318","ALSA-2026:36782","BELL-CVE-2026-35406","DEBIAN-CVE-2026-35406","EUVD-2026-19972","GHSA-hfpq-x728-986j","RHSA-2026:36318","RHSA-2026:36782","RHSA-2026:56999","RLSA-2026:36318","RLSA-2026:36782","UBUNTU-CVE-2026-35406","openSUSE-SU-2026:10570-1"],"status":"published","title":"Aardvark-dns has incorrect error handling for malformed tcp packets","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.","severity":{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00398,"percentile":0.34458,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-400","CWE-835"],"published":"2026-04-07T20:13:04Z","modified":"2026-11-03T06:32:55Z","fixes":[{"ecosystem":"crates.io","package":"netavark","fixed_in":["1.17.1"],"sources":["ghsa","osv"]},{"ecosystem":"Alpine:v3.24","package":"aardvark-dns","fixed_in":["1.17.1-r0"],"sources":["osv"]},{"ecosystem":"AlmaLinux:9","package":"aardvark-dns","fixed_in":["2:1.17.1-1.el9_8"],"sources":["osv"]},{"ecosystem":"AlmaLinux:10","package":"aardvark-dns","fixed_in":["2:1.17.1-1.el10_2"],"sources":["osv"]},{"ecosystem":"Alpaquita:25","package":"aardvark-dns","fixed_in":["1.16.0-r1"],"sources":["osv"]},{"ecosystem":"Alpaquita:stream","package":"aardvark-dns","fixed_in":["1.16.0-r1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"aardvark-dns","fixed_in":["1.16.0-3"],"sources":["osv"]},{"ecosystem":"Red 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Linux:10","package":"aardvark-dns","fixed_in":["2:1.17.1-1.el10_2"],"sources":["osv"]},{"ecosystem":"openSUSE:Tumbleweed","package":"aardvark-dns","fixed_in":["1.17.1-1.1"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"netavark","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.16.0"},{"last_affected":"1.17.0"},{"fixed":"1.17.1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.16.0"},{"fixed":"1.17.1-r0"}]}]},{"source":"osv","ecosystem":"AlmaLinux:9","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.17.1-1.el9_8"}]}]},{"source":"osv","ecosystem":"AlmaLinux:10","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2:1.17.1-1.el10_2"}]}]},{"source":"osv","ecosystem":"Alpaquita:25","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.15.0-r0"},{"fixed":"1.16.0-r1"}]}]},{"source":"osv","ecosystem":"Alpaquita:stream","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.3.0-r0"},{"fixed":"1.16.0-r1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"aardvark-dns","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.16.0-3"}]}],"versions":["1.14.0-3","1.16.0-1","1.16.0-2"]},{"source":"osv","ecosystem":"crates.io","package":"netavark","ranges":[{"type":"SEMVER","events":[{"introduced":"1.16.0"},{"fixed":"1.17.1"}]}]},{"source":"osv","ecosystem":"Red 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Advisory","advisory","web","article","report"]},{"url":"https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1","tags":["x_refsource_MISC","Patch","fix","web","article","report"]},{"url":"https://github.com/containers/aardvark-dns/releases/tag/v1.17.1","tags":["x_refsource_MISC","Release Notes","web","article","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-35406","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-hfpq-x728-986j"},{"url":"https://security.alpinelinux.org/vuln/CVE-2026-35406","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:36318","tags":["advisory"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-35406","tags":["report"]},{"url":"https://bugzilla.redhat.com/2456280","tags":["report"]},{"url":"https://errata.almalinux.org/9/ALSA-2026-36318.html","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:36782","tags":["advisory"]},{"url":"https://errata.almalinux.org/10/ALSA-2026-36782.html","tags":["advisory"]},{"url":"https://docs.bell-sw.com/security/cves/CVE-2026-35406","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/35xxx/CVE-2026-35406.json","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-35406","tags":["advisory"]},{"url":"https://github.com/containers/aardvark-dns","tags":["package"]},{"url":"https://access.redhat.com/security/updates/classification/#moderate","tags":["article"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2456280","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36318.json","tags":["advisory"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-35406","tags":["advisory","report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36782.json","tags":["advisory"]},{"url":"https://access.redhat.com/errata/RHSA-2026:56999","tags":["advisory"]},{"url":"https://images.redhat.com/","tags":["article"]},{"url":"https://access.redhat.com/security/updates/classification/","tags":["article"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-93599","tags":["report"]},{"url":"https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_56999.json","tags":["advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2538431","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-93599","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-93599","tags":["advisory"]},{"url":"https://github.com/rustls/webpki/security/advisories/GHSA-82j2-j2ch-gfr8","tags":["article"]},{"url":"https://www.vulncheck.com/advisories/rustls-webpki-before-0.103.13-panic-via-empty-bit-string","tags":["article"]},{"url":"https://errata.rockylinux.org/RLSA-2026:36318","tags":["advisory"]},{"url":"https://errata.rockylinux.org/RLSA-2026:36782","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-35406","tags":["report"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2026-35406","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-35406","title":"Aardvark-dns has incorrect error handling for malformed tcp packets","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.","status":"published","published":"2026-04-07T21:32:23.512Z","modified":"2026-04-08T16:14:33.19Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:20:05.15083Z"}],"euvd":[{"id":"EUVD-2026-19972","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.","status":"published","published":"2026-04-07T21:32:23Z","modified":"2026-04-08T16:14:33Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T19:25:12.037386Z"}],"ghsa":[{"id":"GHSA-hfpq-x728-986j","title":"netavark has incorrect error handling for malformed tcp packets","description":"### Impact\n\nA truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU.\n\n### Patches\nhttps://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1\n\n### Workarounds\nNone\n\n### Credits\n\nThanks to @dkane01 for reporting this","status":"published","published":"2026-04-07T20:13:04Z","modified":"2026-04-24T13:44:31Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-835"],"updated_at":"2026-11-02T14:39:56.453138Z"}],"nvd":[{"id":"CVE-2026-35406","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.","status":"published","published":"2026-04-07T22:16:23.277Z","modified":"2026-07-24T21:10:00.143Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-400","CWE-835"],"updated_at":"2026-11-02T14:12:13.535987Z"}],"osv":[{"id":"ALPINE-CVE-2026-35406","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.","status":"published","published":"2026-04-07T22:16:23.277Z","modified":"2026-11-03T06:32:55.229324472Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T07:16:26.770911Z"},{"id":"BELL-CVE-2026-35406","status":"published","published":"2026-04-09T06:10:17.950626Z","modified":"2026-04-25T07:22:31.705775Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:28:23.572955Z"},{"id":"CVE-2026-35406","title":"Aardvark-dns has incorrect error handling for malformed tcp packets","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.","status":"published","published":"2026-04-07T21:32:23.512Z","modified":"2026-10-28T02:30:25.896241545Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T15:45:02.673625Z"},{"id":"DEBIAN-CVE-2026-35406","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.","status":"published","published":"2026-04-07T22:16:23.277Z","modified":"2026-10-01T03:03:11.358628933Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:54.587575Z"},{"id":"GHSA-hfpq-x728-986j","title":"netavark has incorrect error handling for malformed tcp packets","description":"### Impact\n\nA truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU.\n\n### Patches\nhttps://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1\n\n### Workarounds\nNone\n\n### Credits\n\nThanks to @dkane01 for reporting this","status":"published","published":"2026-04-07T20:13:04Z","modified":"2026-04-24T14:01:30.020376Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-400","CWE-835"],"updated_at":"2026-11-02T15:46:48.920784Z"},{"id":"RHSA-2026:36318","title":"Red Hat Security Advisory: aardvark-dns security update","status":"published","published":"2026-07-08T10:09:23Z","modified":"2026-09-22T10:11:31Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:19.963895Z"},{"id":"RHSA-2026:36782","title":"Red Hat Security Advisory: aardvark-dns security update","status":"published","published":"2026-07-09T10:12:53Z","modified":"2026-09-22T10:11:36Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:19.963895Z"},{"id":"RHSA-2026:56999","title":"Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update","status":"published","published":"2026-09-22T10:15:27Z","modified":"2026-10-20T10:11:29Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:21.457353Z"},{"id":"RLSA-2026:36318","title":"Moderate: aardvark-dns security update","description":"Authoritative DNS server for A/AAAA container records  Forwards other request to configured resolvers. Read more about configuration in `src/backend/mod.rs`.\n\nSecurity Fix(es):\n\n* aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset (CVE-2026-35406)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-07-08T12:03:53.587615Z","modified":"2026-07-08T12:30:05.775540845Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:25.804165Z"},{"id":"RLSA-2026:36782","title":"Moderate: aardvark-dns security update","description":"Authoritative DNS server for A/AAAA container records  Forwards other request to configured resolvers. Read more about configuration in `src/backend/mod.rs`.\n\nSecurity Fix(es):\n\n* aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset (CVE-2026-35406)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.","status":"published","published":"2026-07-10T12:05:34.876921Z","modified":"2026-07-10T12:30:06.069622714Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-02T15:53:25.804165Z"},{"id":"UBUNTU-CVE-2026-35406","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.","status":"published","published":"2026-04-07T22:16:00Z","modified":"2026-10-17T13:00:02.715376292Z","cvss":[{"version":"3.1","score":6.2,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T16:56:16.686388Z"},{"id":"ALSA-2026:36318","title":"Moderate: aardvark-dns security update","description":"Authoritative DNS server for A/AAAA container records Forwards other request to configured resolvers. Read more about configuration in `src/backend/mod.rs`.  \n\nSecurity Fix(es):  \n\n  * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset (CVE-2026-35406)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-07-07T00:00:00Z","modified":"2026-10-29T11:32:35.473516008Z","updated_at":"2026-11-02T15:27:54.283654Z"},{"id":"ALSA-2026:36782","title":"Moderate: aardvark-dns security update","description":"Authoritative DNS server for A/AAAA container records Forwards other request to configured resolvers. Read more about configuration in `src/backend/mod.rs`.  \n\nSecurity Fix(es):  \n\n  * aardvark-dns: Aardvark-dns: Denial of Service via truncated TCP DNS query and connection reset (CVE-2026-35406)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n","status":"published","published":"2026-07-08T00:00:00Z","modified":"2026-10-29T11:30:30.271550029Z","updated_at":"2026-11-02T15:27:54.283654Z"},{"id":"openSUSE-SU-2026:10570-1","title":"aardvark-dns-1.17.1-1.1 on GA media","description":"These are all security issues fixed in the aardvark-dns-1.17.1-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2026-04-18T00:00:00Z","modified":"2026-04-19T10:30:17.658602Z","updated_at":"2026-11-02T16:58:38.415593Z"}]}}