TSIG packet with name compression can crash DNS

== Summary: Incorrect size calculations when a TSIG record contains compressed names can lead to a large out-of-bounds write causing the server to crash. Description To calculate the size of a DNS packet region signed by a TSIG record, Samba's internal DNS server subtracted the presumed size of t...

RockyLinux 10 : unbound (RLSA-2026:36320)

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:36320 advisory. unbound: Unbound: Denial of Service via excessive EDNS options CVE-2026-41292 unbound: Unbound: Cache manipulation via 'ghost domain names' attack...

CVE-2026-44690

A flaw was found in Unbound. Insufficient validation of the RRSIG.Labels field, combined with premature cache writes during RFC 8198 aggressive NSEC processing, can lead to cache poisoning. This vulnerability allows a malicious actor, controlling a single delegated zone, to poison arbitrary sibli...

CVE-2026-54478

A flaw was found in Unbound. When Unbound is configured to listen on a proxy-protocol port with DNS cookies enabled, it incorrectly computes the server cookie using the proxy's network address instead of the actual client's address. This vulnerability allows an off-path attacker to harvest a vali...

CVE-2026-55991

A flaw was found in Unbound. A remote, unauthenticated client can exploit this vulnerability by sending a specially crafted DNS-over-QUIC DoQ connection and a single DNS query. This can trigger an assertion failure in the libngtcp2 library, leading to the termination of the entire Unbound process...

CVE-2026-17534

Kimi Code fetch path FetchURL is vulnerable before 0.27.0: it hardens SSRF protection with a static hostname and IP-literal denylist in assertSafeFetchTarget but does not resolve DNS or re-validate after HTTP redirects. An attacker who can influence a FetchURL call (e.g., via prompt injection) ca...

crypto/x509: golang: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries

A flaw was found in the crypto/x509 package of golang. This vulnerability allows a remote attacker to cause a Denial of Service DoS by presenting a specially crafted X.509 certificate with a large number of DNS Subject Alternative Name SAN entries. The certificate verification process, specifical...

RHEL 10 : go-fdo-client (RHSA-2026:46394)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:46394 advisory. go-fdo-client is the device-side implementation of FIDO Device Onboard specification in Go. It provides an FDO client that interacts with FDO...

SUSE CVE-2026-11622

A DNSSEC validating resolver that is under a random subdomain attack against a DNSSEC-signed zone can suffer from runaway memory usage. The attacker needs to be able to send queries faster than the resolver can perform validation. The increased memory usage can be orders of magnitude beyond the...

SUSE CVE-2026-11721

It is possible for an attacker's zone to respond to a query with an RRSIG that has a smaller number of labels than the zone in which the RRSIG is contained. This causes named to produce a wildcard name for a zone that is shorter than the attacker's zone, which can result in cache poisoning. For...

SUSE CVE-2026-50252

In NLnet Labs Unbound 1.4.22 up to and including 1.25.1, UDP source port is randomized and intended to serve as a secret value that increases the entropy of DNS transactions. When resolver load balancing policies depend on the source port while their outcome is revealed this secrecy is undermined...

SUSE CVE-2026-55973

In NLnet Labs Unbound 1.23.0 up to and including 1.25.1, when 'dns-error-reporting: yes' is set, the EDNS Report-Channel option code 18 from the last upstream response is read and uses the option's length as the length of the agent domain. When a domain name check is performed on the agent domain...

Potential wildcard CNAME RPZ policy bypass

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CVE-2026-66374

Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ DNS-over-QUIC receive path...

Linux Distros Unpatched Vulnerability : CVE-2026-46582

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In NLnet Labs Unbound 1.6.0 up to and including 1.25.1, a replay of a wildcard rrset as another piece of data, could be briefly considered DNSSEC secure based...

Linux Distros Unpatched Vulnerability : CVE-2026-50248

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, when an auth/rpz zone has a configured primary hostname that resolves to BOGUS A/AAAA, it is still...

Linux Distros Unpatched Vulnerability : CVE-2026-52686

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The issue is a DNSSEC validation bypass where wildcard expansion proofs NSEC/NSEC3 records are accepted without signature validation when the wildcard answer is...

PT-2026-64452

Name of the Vulnerable Software and Affected Versions Knot Resolver versions prior to 6.4.1 Description A heap-based buffer overflow exists in the DoQ DNS-over-QUIC receive path, which could allow remote code execution. A heap-based buffer overflow occurs when a program writes more data to a...

Linux Distros Unpatched Vulnerability : CVE-2026-11605

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not...

Linux Distros Unpatched Vulnerability : CVE-2026-44690

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In NLnet Labs Unbound 1.7.0 up to and including 1.25.1, insufficient validation of the RRSIG.Labels field combined with premature cache writes during RFC 8198...