CVE-2026-40208

CVE-2026-40208 concerns DoH3 servers handling DoH3 GET queries with an invalid DATA frame, potentially delaying processing and causing a denial of service. The available records state the impact as availability loss (LOW) with a CVSS 3.1 base score of 3.7, network-exposed and requiring no privile...

CVE-2026-40208

An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame...

Fedora 44 : dnsdist (2026-51cdd1292b)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-51cdd1292b advisory. Bug Fixes: CVE-2026-33254: An attacker can create a large number of concurrent DoQ or DoH3 connections, causing unlimited memory allocation in DNSdi...

Fedora 43 : bind9-next (2026-ec095a4675)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ec095a4675 advisory. Update to 9.21.22 rhbz2480122 Security Fixes: - Limit resolver server list size. CVE-2026-3592 - Fix GSS-API resource leak. CVE-2026-3039 - Disable...

SUSE CVE-2026-3593

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

Updated bind packages fix security vulnerabilities

Updated bind package fixes security vulnerabilities: BIND 9 server memory exhaustion during GSS-API TKEY negotiation CVE-2026-3039 Amplification vulnerabilities via self-pointed glue records CVE-2026-3592 Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation CVE-2026-3593...

Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS : Bind vulnerabilities (USN-8293-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 25.10 / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8293-1 advisory. Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could...

USN-8293-1: Bind vulnerabilities

Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. CVE-2026-3039 Shuhan Zhang discovered that Bind incorrectly handled self-pointed...

USN-8293-1 bind9 vulnerabilities

Vitaly Simonovich discovered that Bind could exhaust memory during GSS-API TKEY negotiation. A remote attacker could possibly use this issue to cause Bind to use excessive resources, leading to a denial of service. CVE-2026-3039 Shuhan Zhang discovered that Bind incorrectly handled self-pointed...

CVE-2026-3593

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

CVE-2026-3593

A use-after-free vulnerability exists in BIND 9’s DNS-over-HTTPS implementation. Affected: BIND 9.20.0–9.20.22, 9.21.0–9.21.21, and 9.20.9-S1–9.20.22-S1. Not affected: 9.18.0–9.18.48 and 9.18.11-S1–9.18.48-S1. Impact: memory corruption with potential denial of service or code execution (per Red H...

CVE-2026-3593 Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

EUVD-2026-31108

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

CVE-2026-3593 Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

CVE-2026-3593

A use-after-free vulnerability exists within the DNS-over-HTTPS implementation. This issue affects BIND 9 versions 9.20.0 through 9.20.22, 9.21.0 through 9.21.21, and 9.20.9-S1 through 9.20.22-S1. BIND 9 versions 9.18.0 through 9.18.48 and 9.18.11-S1 through 9.18.48-S1 are NOT affected...

CoreDNS DoH GET path missing size validation causes CPU and memory amplification

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SUSE CVE-2026-35579

CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG authentication. For gRPC and QUIC, the server checks whether the TSIG key name exists in the configuration but never calls dns.TsigVerify to validate...

CVE-2026-35579 CoreDNS TSIG authentication bypass on gRPC, QUIC, DoH, and DoH3 transports

CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG authentication. For gRPC and QUIC, the server checks whether the TSIG key name exists in the configuration but never calls dns.TsigVerify to validate...

CVE-2026-35579 CoreDNS TSIG authentication bypass on gRPC, QUIC, DoH, and DoH3 transports

CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG authentication. For gRPC and QUIC, the server checks whether the TSIG key name exists in the configuration but never calls dns.TsigVerify to validate...

EUVD-2026-27493

CoreDNS is a DNS server written in Go. In versions prior to 1.14.3, the gRPC, QUIC, DoH, and DoH3 transport implementations incorrectly handle TSIG authentication. For gRPC and QUIC, the server checks whether the TSIG key name exists in the configuration but never calls dns.TsigVerify to validate...