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unbound: Unbound: Denial of Service due to excessive resource consumption with large DNS Resource Record Sets

🗓️ 08 Jul 2026 16:36:29Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 8 Views

Unbound faces denial of service from processing very large Resource Record Sets in crafted DNS responses.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64python3-unbound1.24.2-3.el9_8.2python3-unbound-1.24.2-3.el9_8.2.aarch64.rpm
Red Hat Enterprise Linux9.8ppc64lepython3-unbound1.24.2-3.el9_8.2python3-unbound-1.24.2-3.el9_8.2.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xpython3-unbound1.24.2-3.el9_8.2python3-unbound-1.24.2-3.el9_8.2.s390x.rpm
Red Hat Enterprise Linux9.8x86_64python3-unbound1.24.2-3.el9_8.2python3-unbound-1.24.2-3.el9_8.2.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64python3-unbound-debuginfo1.24.2-3.el9_8.2python3-unbound-debuginfo-1.24.2-3.el9_8.2.aarch64.rpm
Red Hat Enterprise Linux9.8i686python3-unbound-debuginfo1.24.2-3.el9_8.2python3-unbound-debuginfo-1.24.2-3.el9_8.2.i686.rpm
Red Hat Enterprise Linux9.8ppc64lepython3-unbound-debuginfo1.24.2-3.el9_8.2python3-unbound-debuginfo-1.24.2-3.el9_8.2.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xpython3-unbound-debuginfo1.24.2-3.el9_8.2python3-unbound-debuginfo-1.24.2-3.el9_8.2.s390x.rpm
Red Hat Enterprise Linux9.8x86_64python3-unbound-debuginfo1.24.2-3.el9_8.2python3-unbound-debuginfo-1.24.2-3.el9_8.2.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64unbound1.24.2-3.el9_8.2unbound-1.24.2-3.el9_8.2.aarch64.rpm
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01 Sep 2026 12:04Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.3 - 7.5
CVSS 46.9
EPSS0.00625
SSVC
8