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OpenAdvisories
High RHSA-2026:67134 1 CVE

Red Hat Security Advisory: yggdrasil security update

Published Sep 14, 2026 · Updated Oct 20, 2026

Ecosystem: Red Hat

Fixed packages 5

ReleasePackageFixed in
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 yggdrasil 0:0.4.7-6.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 yggdrasil-debuginfo 0:0.4.7-6.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 yggdrasil-debugsource 0:0.4.7-6.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 yggdrasil-devel 0:0.4.7-6.el10_0
Red Hat · RHEL 10.0 EUS enterprise_linux_eus:10.0 yggdrasil-examples-debuginfo 0:0.4.7-6.el10_0

Vulnerabilities 1

  • High 7.5
    CVE-2026-33810

    Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509

    When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issu…

    Go standard library crypto/x509 golang go Debian Ubuntu Azure Linux Alpine Wolfi Go

References

  • article
    https://access.redhat.com/security/updates/classification/#important
  • report
    https://bugzilla.redhat.com/show_bug.cgi?id=2456335
  • advisory
    https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_67134.json
  • report
    https://access.redhat.com/security/cve/CVE-2026-33810
  • advisory
    https://www.cve.org/CVERecord?id=CVE-2026-33810
  • advisory
    https://nvd.nist.gov/vuln/detail/CVE-2026-33810
  • article
    https://go.dev/cl/763763
  • article
    https://go.dev/issue/78332
  • article
    https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
  • advisory
    https://pkg.go.dev/vuln/GO-2026-4866