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High RHSA-2026:56999 2 CVEs

Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

Published Sep 22, 2026 · Updated Nov 13, 2026

Ecosystem: Red Hat

Fixed packages 2

ReleasePackageFixed in
Red Hat · Hardened Images 1 hummingbird:1 aardvark-dns 2:2.1.0-1.hum1
Red Hat · Hardened Images 1 hummingbird:1 aardvark-dns-tests 2:2.1.0-1.hum1

Vulnerabilities 2

  • High 7.5
    CVE-2026-93599

    rustls-webpki before 0.103.13 Panic via empty BIT STRING

    rustls-webpki through 0.103.12 (and 0.104.0-alpha releases before 0.104.0-alpha.7) contains a reachable panic in bit_string_flags() in src/der.rs. The input guard fails to reject a named-bit BIT STRING whose content is exactly [0x00] (zero padding bits and no…

    rustls webpki rust kata-containers-cc Debian Ubuntu Azure Linux crates.io
  • 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 netavark aardvark-dns Debian Ubuntu Alpine crates.io

References

  • article
    https://images.redhat.com/
  • report
    https://access.redhat.com/security/cve/CVE-2026-35406
  • article
    https://access.redhat.com/security/updates/classification/
  • report
    https://access.redhat.com/security/cve/CVE-2026-93599
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_56999.json
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456280
  • 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
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2538431
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-93599
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-93599
  • article
    https://github.com/rustls/webpki/security/advisories/GHSA-82j2-j2ch-gfr8
  • article
    https://www.vulncheck.com/advisories/rustls-webpki-before-0.103.13-panic-via-empty-bit-string