Important: bind9.18 security update

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

DNS Rebinding

MCP Java SDK is vulnerable to DNS Rebinding. The vulnerability is due to lack of Origin Validation, allowing a malicious website to bypass same-origin restrictions and access a local or network-private MCP server via the victim’s browser, enabling unauthorized tool invocation...

bind: Heap use-after-free vulnerability in BIND 9 DNS-over-HTTPS implementation

A flaw was found in the BIND Berkeley Internet Name Domain DNS-over-HTTPS implementation. A remote attacker could send specially crafted HTTP/2 traffic to a DNS-over-HTTPS endpoint, leading to a use-after-free vulnerability. This could trigger memory corruption, potentially allowing the attacker ...

CVE-2026-35659 OpenClaw < 2026.3.22 - Unresolved Service Metadata Routing via Bonjour and DNS-SD Discovery

OpenClaw before 2026.3.22 contains a service discovery vulnerability where TXT metadata from Bonjour and DNS-SD could influence CLI routing even when actual service resolution failed. Attackers can exploit unresolved hints to steer routing decisions to unintended targets by providing malicious...

SUSE-SU-2026:21164-1 Security update for glibc

This update for glibc fixes the following issues: Security fixes: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082. Other fixes: - nss: Missing checks in...

SUSE-SU-2026:20999-1 Security update for glibc

This update for glibc fixes the following issues: Security fixes: - CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response bsc1260078. - CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions bsc1260082. Other fixes: - nss: Missing checks in...

EUVD-2026-21218

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

RLSA-2026:7350 Important: nodejs:24 security update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: nodejs: Nodejs denial of service CVE-2026-21637 brace-expansion: brace-expansion: Denial of Service via unbounded brace range expansion...

PT-2026-31970

OpenClaw before 2026.3.22 contains a service discovery vulnerability where TXT metadata from Bonjour and DNS-SD could influence CLI routing even when actual service resolution failed. Attackers can exploit unresolved hints to steer routing decisions to unintended targets by providing malicious...

Buffer Over-read

Overview Affected versions of this package are vulnerable to Buffer Over-read in the MatchDomainName function during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. An attacker can cause a crash by supplying a crafted hostname that exhausts the entire string, resulting ...

DEBIAN-CVE-2026-5772

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

CVE-2026-5772

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

CVE-2026-5772 MatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

CVE-2026-5772

The CVE-2026-5772 issue is a 1-byte stack buffer over-read in wolfSSL’s MatchDomainName (src/internal.c) when validating wildcards with LEFT_MOST_WILDCARD_ONLY; if a wildcard exhausts the hostname, one byte past the buffer is read without bounds checking, potentially crashing the process. Evidenc...

CVE-2026-5772 MatchDomainName 1-Byte Stack Buffer Over-Read in Hostname Validation

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

CVE-2026-5772

A 1-byte stack buffer over-read was identified in the MatchDomainName function src/internal.c during wildcard hostname validation when the LEFTMOSTWILDCARDONLY flag is active. If a wildcard exhausts the entire hostname string, the function reads one byte past the buffer without a bounds check,...

Node.js: Node.js: Denial of Service via malformed Internationalized Domain Name processing

A flaw was found in Node.js. This vulnerability allows an attacker to cause a Denial of Service DoS by providing a malformed Internationalized Domain Name IDN to the url.format function. When processed, this malformed input triggers an internal error, causing the Node.js application to crash. Thi...

glibc: glibc: Incorrect DNS response parsing via crafted DNS server response

A flaw was found in glibc the GNU C Library. When an application uses the gethostbyaddr or gethostbyaddrr functions with a nsswitch.conf configuration that specifies glibc's DNS backend, a remote attacker can send a specially crafted DNS Domain Name System response. This crafted response can caus...

glibc: glibc: Information disclosure via zero-valued network query

A flaw was found in glibc, the GNU C Library. When an application calls the getnetbyaddr or getnetbyaddrr functions to resolve a network address, and the system's nsswitch.conf file is configured to use a DNS Domain Name System backend for network lookups, a query for a zero-valued network can le...

ruby: use of predictable source port and transaction id in DNS requests done by resolv.rb module

resolv.rb in Ruby 1.8.5 and earlier, 1.8.6 before 1.8.6-p287, 1.8.7 before 1.8.7-p72, and 1.9 r18423 and earlier uses sequential transaction IDs and constant source ports for DNS requests, which makes it easier for remote attackers to spoof DNS responses, a different vulnerability than...