Linux Distros Unpatched Vulnerability : CVE-2026-24030

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of...

OPENSUSE-SU-2026:10473-1 dnsdist-2.0.3-1.1 on GA media

These are all security issues fixed in the dnsdist-2.0.3-1.1 package on the GA media of openSUSE Tumbleweed...

SUSE CVE-2026-24030

An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly...

SUSE CVE-2026-27853

An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535...

SUSE CVE-2026-27854

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

CVE-2026-0397

A flaw was found in the internal webserver of dnsdist and PowerDNS. When the internal webserver is enabled, a remote attacker can exploit a misconfiguration in the Cross-Origin Resource Sharing CORS policy. By tricking an administrator logged into the dashboard into visiting a malicious website,...

CVE-2026-27853

A flaw was found in dnsdist. A remote attacker could send specially crafted DNS responses that, when processed by dnsdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code, may trigger an out-of-bounds write. This vulnerability can lead to a system crash,...

CVE-2026-27854

A flaw was found in DNSdist. An attacker could exploit this by sending crafted DNS queries that interact with the DNSQuestion:getEDNSOptions method in custom Lua code. This interaction can trigger a use-after-free vulnerability, potentially leading to a crash and a denial of service DoS for the...

CVE-2026-24029

A flaw was found in dnsdist, a high-performance DNS Domain Name System load balancer. When the earlyacldrop option is disabled on a DNS over HTTPS DoH frontend, the Access Control List ACL check is bypassed. This allows any client to send DoH queries, potentially leading to unauthorized access to...

CVE-2026-24028

A flaw was found in dnsdist and PowerDNS when custom Lua code uses newDNSPacketOverlay to parse DNS packets. A remote attacker could exploit this by sending a specially crafted DNS response packet, leading to an out-of-bounds read. This vulnerability might cause a system crash, resulting in a...

EUVD-2026-17409

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

EUVD-2026-17361

An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNSdist instance where domain-based dynamic rules have been enabled via either DynBlockRulesGroup:setSuffixMatchRule or DynBlockRulesGroup:setSuffixMatchRuleFFI...

CVE-2026-27854

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

CVE-2026-27853

An attacker might be able to trigger an out-of-bounds write by sending crafted DNS responses to a DNSdist using the DNSQuestion:changeName or DNSResponse:changeName methods in custom Lua code. In some cases the rewritten packet might become larger than the initial response and even exceed 65535...

UBUNTU-CVE-2026-0396

An attacker might be able to inject HTML content into the internal web dashboard by sending crafted DNS queries to a DNSdist instance where domain-based dynamic rules have been enabled via either DynBlockRulesGroup:setSuffixMatchRule or DynBlockRulesGroup:setSuffixMatchRuleFFI...

UBUNTU-CVE-2026-27854

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

UBUNTU-CVE-2026-24030

An attacker might be able to trick DNSdist into allocating too much memory while processing DNS over QUIC or DNS over HTTP/3 payloads, resulting in a denial of service. In setups with a large quantity of memory available this usually results in an exception and the QUIC connection is properly...

CVE-2026-27854 Use after free when parsing EDNS options in Lua

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

CVE-2026-27854 Use after free when parsing EDNS options in Lua

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...

CVE-2026-27854 Use after free when parsing EDNS options in Lua

An attacker might be able to trigger a use-after-free by sending crafted DNS queries to a DNSdist using the DNSQuestion:getEDNSOptions method in custom Lua code. In some cases DNSQuestion:getEDNSOptions might refer to a version of the DNS packet that has been modified, thus triggering a...