CVE-2026-47778

A flaw was found in Envoy, an open-source edge and service proxy. A remote attacker could exploit a structural flaw in the DefaultCertValidator::verifySubjectAltName function by presenting a specially crafted certificate. This certificate would contain a NUL byte within its DNS Subject Alternativ...

dnsmasq: dnsmasq: heap buffer overflow in cache via NAME_ESCAPE expansion

A heap buffer overflow was discovered in dnsmasq's DNS cache. When processing DNS responses, dnsmasq expands certain characters into longer escape sequences, but the cache buffer is not sized to hold the expanded result. A specially crafted DNS response can overflow this buffer, potentially...

net: golang: Go net package: Denial of Service via long CNAME response in LookupCNAME

A flaw was found in the net package of Go golang, specifically when using the LookupCNAME function with the cgo DNS resolver. A remote attacker could exploit this by providing a very long Canonical Name CNAME response. This can trigger a double-free of C memory, leading to a crash and a Denial of...

ALSA-2026:34357 Important: opentelemetry-collector security update

Collector with the supported components for a AlmaLinux build of OpenTelemetry Security Fixes: github.com/prometheus/prometheus: Prometheus: Denial of Service via uncontrolled memory allocation in remote read endpoint CVE-2026-42154 github.com/prometheus/prometheus: Prometheus: Information...

RHEL 9 : opentelemetry-collector (RHSA-2026:34359)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:34359 advisory. Collector with the supported components for a Red Hat build of OpenTelemetry Security Fixes: github.com/prometheus/prometheus: Prometheus:...

BIT-ENVOY-2026-48497 Envoy: Abnormal process termination in DNS UDP filter

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long...

SUSE-SU-2026:2695-1 Security update for nodejs22

This update for nodejs22 fixes the following issues: - CVE-2026-48618: tls: normalize hostname for server identity checks bsc1268593. - CVE-2026-48933: crypto: guard WebCrypto cipher output length bsc1268592. - CVE-2026-48615: lib,test: redact proxy credentials in tunnel errors bsc1268598. -...

The vulnerability in the `io.netty.handler.codec.dns.DnsCodecUtil` component of the Netty framework, which is used for developing network applications, servers, and clients, allows a attacker to cause a service failure.

The vulnerability of the io.netty.handler.codec.dns.DnsCodecUtil component in the Netty framework, which is used for developing network applications, servers, and clients, relates to the execution of operations outside of the buffer in memory. Exploiting this vulnerability could allow a malicious...

The vulnerability of the DNS request processing mechanism in the BIND DNS server’s named daemon allows a attacker to cause a service failure.

The vulnerability of the DNS request processing mechanism in the BIND DNS server’s named daemon is related to insufficient validation of input data. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the BIND DNS server, related to resource release errors, allows a hacker to cause a service failure.

The vulnerability of the BIND DNS server is related to resource release errors. Exploiting this vulnerability can allow a malicious actor to cause service failures...

The vulnerability of the GSS-API token processing module of the TKEY authentication mechanism’s DNS server BIND allows a perpetrator to cause a service failure.

The vulnerability of the GSS-API token processing module of the TKEY authentication mechanism’s DNS server BIND relates to the absence of a reference to an active, allocated resource. Exploiting this vulnerability can allow a malicious actor to cause service failures...

CVE-2026-10646

Zephyr's BSD-sockets getaddrinfo() (subsys/net/lib/sockets/getaddrinfo.c) has a use-after-return risk from a stack-allocated ai_state being kept as user_data during a DNS resolver retry. If a semaphore wait times out and the code retries without cancelling the previous query or resetting the sema...

[SECURITY] Fedora 43 Update: ldns-1.9.2-1.fc43

ldns is a library with the aim to simplify DNS programming in C. All low-level DNS/DNSSEC operations are supported. We also define a higher level API which allows a programmer to for instance create or sign packets...

CVE-2026-36478

An issue in Technitium DNS Server v.14.3 and before allows a remote attacker to cause a denial of service via the DnsServerApp.exe, DnsServerApp.dll, TechnitiumLibrary.Net/Dns/DnsClient.cs components...

CVE-2026-54353 Budibase: Potential SSRF DNS rebinding bypass in outbound fetch validation

Budibase is an open-source low-code platform. Prior to 3.39.9, authenticated users with automation permissions can bypass Budibase's SSRF blacklist through DNS rebinding. The outbound fetch flow validates a hostname against the blacklist before the request is sent, but the actual socket connectio...

CVE-2026-48497

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long...

CVE-2026-48497

CVE-2026-48497 affects Envoy and relates to the UDP DNS filter. Before versions 1.35.11, 1.36.7, 1.37.3, and 1.38.1, a query with a DNS name of exactly 255 octets (local or remote resolution) can trigger abnormal process termination due to an invalid runtime precondition that the name must be str...

CVE-2026-48497 Envoy: Abnormal process termination in DNS UDP filter

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long...

CVE-2026-48497 Envoy: Abnormal process termination in DNS UDP filter

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, in cases where UDP DNS filter is configured with local resolution containing a name with the length of 255 octets or remote resolution for a name of 255 octets long...

DNS Rebinding

Overview Affected versions of this package are vulnerable to DNS Rebinding in dns.lookup lib/dns.js and lookupAndConnect lib/net.js, which forward a hostname containing an embedded NUL byte to the native resolver bindings where the C string is truncated at the first NUL. An attacker can cause an...