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OpenAdvisories
Medium RHSA-2026:36318 1 CVE

Red Hat Security Advisory: aardvark-dns security update

Published Jul 8, 2026 · Updated Sep 22, 2026

Ecosystem: Red Hat

Fixed packages 3

ReleasePackageFixed in
Red Hat · RHEL 9 enterprise_linux:9::appstream aardvark-dns 2:1.17.1-1.el9_8
Red Hat · RHEL 9 enterprise_linux:9::appstream aardvark-dns-debuginfo 2:1.17.1-1.el9_8
Red Hat · RHEL 9 enterprise_linux:9::appstream aardvark-dns-debugsource 2:1.17.1-1.el9_8

Vulnerabilities 1

  • Medium 6.2
    CVE-2026-35406

    Aardvark-dns has incorrect error handling for malformed tcp packets

    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 fixe…

    containers aardvark-dns aardvark-dns netavark Debian Ubuntu Alpine crates.io

References

  • article
    https://access.redhat.com/security/updates/classification/#moderate
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456280
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_36318.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-35406
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-35406
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-35406
  • article
    https://github.com/containers/aardvark-dns/commit/3b49ea7b38bdea134b7f03256f2e13f44ce73bb1
  • article
    https://github.com/containers/aardvark-dns/releases/tag/v1.17.1
  • article
    https://github.com/containers/aardvark-dns/security/advisories/GHSA-hfpq-x728-986j