CVE-2026-27853 Out-of-bounds write when rewriting large DNS packets

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...

CVE-2026-27853

CVE-2026-27853 affects dnsdist. The vulnerability arises when crafted DNS responses are processed by Lua code via DNSQuestion:changeName or DNSResponse:changeName, potentially causing an out-of-bounds write and denial of service. Connected advisories confirm dnsdist in multiple distros; Debian re...

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...

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...

CVE-2026-24030 Unbounded memory allocation for DoQ and DoH3

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-2026-24030

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-2026-24030

DNSdist (DNS load balancer) has a vulnerability CVE-2026-24030 where processing DNS over QUIC or DNS over HTTP/3 payloads may allocate unbounded memory, potentially causing denial of service and, in some cases, an out-of-memory state. Debian’s advisory notes a fix in dnsdist for stable (trixie) v...

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-2026-0396

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...

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...

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...

CVE-2026-0396

CVE-2026-0396 affects dnsdist, a DNS load balancer. The issue arises when domain-based dynamic rules are enabled (DynBlockRulesGroup:setSuffixMatchRule / setSuffixMatchRuleFFI), allowing crafted DNS queries to cause HTML content injection into the internal web dashboard. Associated advisories con...

DNSdist 安全漏洞

DNSdist is an open-source load balancer designed for highly aware DNS, DoS, and abuse detection. DNSdist has a security vulnerability that arises from improper configuration of cross-source resource sharing policies when an internal web server is enabled. This vulnerability could allow attackers ...

DNSdist 安全漏洞

DNSdist is an open-source load balancer designed for highly aware DNS, DoS, and abuse prevention. DNSdist has security vulnerabilities, which allow attackers to inject HTML content into internal web dashboards by sending specially crafted DNS queries to DNSdist instances that are enabled with...

PowerDNS DNSdist 安全漏洞

PowerDNS DNSdist is a proxy software provided by PowerDNS, which offers capabilities for DNS traffic load balancing and security protection. PowerDNS DNSdist has a security vulnerability that stems from the use of newDNSPacketOverlay to parse DNS packets, leading to out-of-bounds read operations...

PowerDNS DNSdist 安全漏洞

PowerDNS DNSdist is a proxy software provided by PowerDNS that offers capabilities for DNS traffic load balancing and security protection. PowerDNS DNSdist has a security vulnerability that arises from skipping ACL checks when the earlyacl Drop option is disabled. This vulnerability may cause all...

PowerDNS DNSdist 安全漏洞

PowerDNS DNSdist is a proxy software provided by PowerDNS, which offers capabilities for DNS traffic load balancing and security protection. PowerDNS DNSdist has a security vulnerability that stems from the use of the DNSQuestion:getEDNSOptions method, where objects are reclaimed and reused,...

SUSE SLED15 / SLES15 Security Update : dnsdist (SUSE-SU-2026:0888-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:0888-1 advisory. Update to dnsdist 1.9.11: - CVE-2025-8671: Add mitigations for the HTTP/2 MadeYouReset attack bsc1253852. -...

Security update for dnsdist

This update for dnsdist fixes the following issues: Update to dnsdist 1.9.11: CVE-2025-8671: Add mitigations for the HTTP/2 MadeYouReset attack bsc1253852. CVE-2025-30187: denial of service via crafted DoH exchange bsc1250054. Patch Instructions: To install this SUSE update use the SUSE recommend...

SUSE-SU-2026:0888-1 Security update for dnsdist

This update for dnsdist fixes the following issues: Update to dnsdist 1.9.11: - CVE-2025-8671: Add mitigations for the HTTP/2 MadeYouReset attack bsc1253852. - CVE-2025-30187: denial of service via crafted DoH exchange bsc1250054...