CVE-2026-123591 Hickory DNS 0.26.0-beta.1 before 0.26.2 DNSSEC Validation Bypass via Missing RFC 6840 Checks

Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 fail to verify, per RFC 6840 §4.4, that an NSEC or NSEC3 record denying a DS RRset also proves the delegation's NS record exists. Attackers can reuse child-side NSEC or NSEC3 records to fake an insecure...

CVE-2026-123591

The Hickory DNS software is vulnerable to a DNSSEC Validation Bypass in hickory-net versions 0.26.0-beta.1 before 0.26.2 and hickory-proto versions through 0.26.0-alpha.1 . The root cause is a failure to comply with RFC 6840 §4.4 , where the software fails to verify that an NSEC or NSEC3 record d...

CVE-2026-123591 Hickory DNS 0.26.0-beta.1 before 0.26.2 DNSSEC Validation Bypass via Missing RFC 6840 Checks

Hickory DNS hickory-net 0.26.0-beta.1 before 0.26.2 and hickory-proto through 0.26.0-alpha.1 fail to verify, per RFC 6840 §4.4, that an NSEC or NSEC3 record denying a DS RRset also proves the delegation's NS record exists. Attackers can reuse child-side NSEC or NSEC3 records to fake an insecure...

EulerOS 2.0 SP8 : dnsmasq (EulerOS-SA-2024-2461)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CP...

EulerOS 2.0 SP8 : bind (EulerOS-SA-2024-2456)

According to the versions of the bind packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CPU...

EulerOS Virtualization 2.12.0 : systemd (EulerOS-SA-2024-2338)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cau...

EulerOS Virtualization 2.12.1 : systemd (EulerOS-SA-2024-2318)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cau...

EulerOS 2.0 SP12 : systemd (EulerOS-SA-2024-2252)

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...

EulerOS 2.0 SP12 : systemd (EulerOS-SA-2024-2228)

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...

EulerOS Virtualization 2.11.0 : systemd (EulerOS-SA-2024-2187)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denia...

EulerOS Virtualization 2.10.1 : systemd (EulerOS-SA-2024-2150)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denia...

EulerOS Virtualization 2.10.0 : systemd (EulerOS-SA-2024-2130)

According to the versions of the systemd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denia...

EulerOS 2.0 SP11 : systemd (EulerOS-SA-2024-2095)

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CP...

EulerOS 2.0 SP8 : bind (EulerOS-SA-2024-2018)

According to the versions of the bind packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CPU...

EulerOS 2.0 SP8 : dnsmasq (EulerOS-SA-2024-2023)

According to the versions of the dnsmasq packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : Certain DNSSEC aspects of the DNS protocol in RFC 4033, 4034, 4035, 6840, and related RFCs allow remote attackers to cause a denial of service CP...

EulerOS Virtualization 2.10.1 : dnsmasq (EulerOS-SA-2024-1999)

According to the versions of the dnsmasq package installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to caus...

EulerOS 2.0 SP9 : systemd (EulerOS-SA-2024-1947)

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...

EulerOS 2.0 SP9 : dnsmasq (EulerOS-SA-2024-1954)

According to the versions of the dnsmasq package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...

EulerOS 2.0 SP9 : systemd (EulerOS-SA-2024-1974)

According to the versions of the systemd packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...

EulerOS 2.0 SP9 : dnsmasq (EulerOS-SA-2024-1927)

According to the versions of the dnsmasq package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : The Closest Encloser Proof aspect of the DNS protocol in RFC 5155 when RFC 9276 guidance is skipped allows remote attackers to cause a denial of...