CVE-2026-50252

A flaw in Unbound's SOREUSEPORT implementation reduces UDP source port entropy by allowing attackers to map ports to specific worker threads. This enables DNS cache poisoning, potentially leading to traffic redirection or unauthorized information disclosure. Mitigation Disable the so-reuseport...

CVE-2026-50248

A flaw in Unbound allows a remote attacker to replace an authenticated or Response Policy Zone RPZ by spoofing DNS records for configured primary hostnames. This enables the attacker to impersonate the primary server, leading to DNS cache poisoning or traffic redirection. Mitigation Configure...

unbound: Unbound: Cache poisoning via insufficient RRSIG.Labels validation and premature cache writes

A flaw was found in Unbound. Insufficient validation of the RRSIG.Labels field, combined with premature cache writes during RFC 8198 aggressive NSEC processing, can lead to cache poisoning. This vulnerability allows a malicious actor, controlling a single delegated zone, to poison arbitrary sibli...

bind9.18 security update

An update is available for bind9.18. This update affects Rocky Linux 9. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Na...

GO-2026-4635 vulnerabilities

Vulnerabilities for packages: kubernetes-dns-node-cache...

Oracle Linux 8 : bind9.16 (ELSA-2026-54509)

The remote Oracle Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-54509 advisory. - Fix NSEC3 signer validation CVE-2026-10723 - Reject out-of-zone NSEC next owner names CVE-2026-13321 - Fix CVE-2026-11622: reference-counted DNS cac...

bind: bind9: Potential memory usage beyond configured limits

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...

CLEANSTART-2026-WX78037 Security fixes in kubernetes-dns-node-cache 1.26.8-r6

Package kubernetes-dns-node-cache version 1.26.8-r6 fixes 2 vulnerabilities: CVE-2026-50274, ghsa-74j5-xf3v-crq8...

bind: bind9: Incorrect acceptance of NSEC3 records

BIND may accept incorrect child-zone NSEC3 records as valid, which could allow an attacker to forge authenticated NXDOMAIN responses...

bind9.16 security update

32:9.16.23-0.22.12 - Fix NSEC3 signer validation CVE-2026-10723 - Resolves: RHEL-213499 32:9.16.23-0.22.11 - Reject out-of-zone NSEC next owner names CVE-2026-13321 - Resolves: RHEL-213313 32:9.16.23-0.22.10 - Fix CVE-2026-11622: reference-counted DNS cache slab headers - Resolves: RHEL-213396...

SUSE SLES15 Security Update : erlang26 (SUSE-SU-2026:3579-1)

The remote SUSE Linux SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3579-1 advisory. - CVE-2026-28810: predictable DNS transaction IDs can cause DNS cache poisoning bsc1261726. - CVE-2026-42789: publickey application...

RHEL 8 : bind9.16 (RHSA-2026:54509)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:54509 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named...

io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records

A flaw was found in Netty's DnsResolveContext. An attacker controlling an authoritative name server for a subdomain can exploit this vulnerability by providing crafted NS records that are insufficiently validated. This allows the attacker to poison the DNS cache for parent domains, bypassing...

ldns: ldns: Off-path poisoning attacks due to insufficient query-response matching

A flaw was found in ldns. When applications use ldns as a resolver over User Datagram Protocol UDP, it fails to properly match the query's destination address and port with the response's source address and port. Additionally, the query ID and question are not matched with the response. This...

ldns: ldns: Off-path poisoning attacks due to insufficient query-response matching

A flaw was found in ldns. When applications use ldns as a resolver over User Datagram Protocol UDP, it fails to properly match the query's destination address and port with the response's source address and port. Additionally, the query ID and question are not matched with the response. This...

ldns: ldns: Off-path poisoning attacks due to insufficient query-response matching

A flaw was found in ldns. When applications use ldns as a resolver over User Datagram Protocol UDP, it fails to properly match the query's destination address and port with the response's source address and port. Additionally, the query ID and question are not matched with the response. This...

io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records

A flaw was found in Netty's DnsResolveContext. An attacker controlling an authoritative name server for a subdomain can exploit this vulnerability by providing crafted NS records that are insufficiently validated. This allows the attacker to poison the DNS cache for parent domains, bypassing...

io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records

A flaw was found in Netty's DnsResolveContext. An attacker controlling an authoritative name server for a subdomain can exploit this vulnerability by providing crafted NS records that are insufficiently validated. This allows the attacker to poison the DNS cache for parent domains, bypassing...

SUSE-SU-2026:3579-1 Security update for erlang26

This update for erlang26 fixes the following issues: - CVE-2026-28810: predictable DNS transaction IDs can cause DNS cache poisoning bsc1261726. - CVE-2026-42789: publickey application accepts non-CA certificates as intermediate issuers and this enables chain forgery bsc1266449. - CVE-2026-42790:...

ldns: ldns: Off-path poisoning attacks due to insufficient query-response matching

A flaw was found in ldns. When applications use ldns as a resolver over User Datagram Protocol UDP, it fails to properly match the query's destination address and port with the response's source address and port. Additionally, the query ID and question are not matched with the response. This...