crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

Security update for bind

This update for bind fixes the following issues CVE-2026-10723: incorrect acceptance of NSEC3 records bsc1271982. CVE-2026-11331: potential wildcard CNAME RPZ policy bypass bsc1271984. CVE-2026-11622: potential memory usage beyond configured limits bsc1271986. CVE-2026-11721: cache poisoning...

SUSE-SU-2026:3476-1 Security update for bind

This update for bind fixes the following issues - CVE-2026-10723: Incorrect acceptance of NSEC3 records bsc1271982. - CVE-2026-11331: Potential wildcard CNAME RPZ policy bypass bsc1271984. - CVE-2026-11622: Potential memory usage beyond configured limits bsc1271986. - CVE-2026-11721: Cache...

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.14

Red Hat OpenShift Service Mesh 3.0.14 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

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...

crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application

A flaw was found in the crypto/x509 package within Go golang. When verifying a certificate chain, excluded DNS Domain Name System constraints are not correctly applied to wildcard DNS Subject Alternative Names SANs if the case of the SAN differs from the constraint. This oversight could allow an...

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...

io.netty/netty-resolver-dns: Netty has Insufficient Bailiwick Validation for NS Records

A flaw was found in Netty's DnsResolveContext. An attacker controlling an authoritative name server for a subdomain can exploit this vulnerability by providing crafted NS records that are insufficiently validated. This allows the attacker to poison the DNS cache for parent domains, bypassing...

RLSA-2026:47104 Important: firefox security update

Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. Security Fixes: libaom: libaom: heap buffer overflow in AV1 encoder first-pass stats buffer via LAP mode CVE-2026-56208 firefox: thunderbird: Site isolation issue in the DOM: Navigation...

Security update for bind

This update for bind fixes the following issues: CVE-2026-10723: accepting incorrect child-zone NSEC3 records as valid can allow an attacker to forge authenticated NXDOMAIN responses for sibling zones bsc1271982. CVE-2026-10822: storing a DNS key record with an invalid PRIVATEDNS algorithm...

RHSA-2026:49520 Red Hat Security Advisory: ldns security update

Bulletin has no description...

firefox: thunderbird: Same-origin policy bypass in the Networking: DNS component

A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue: Same-origin policy bypass in the Networking: DNS component...

ldns: ldns: Off-path poisoning attacks due to insufficient query-response matching

A flaw was found in ldns. When applications use ldns as a resolver over User Datagram Protocol UDP, it fails to properly match the query's destination address and port with the response's source address and port. Additionally, the query ID and question are not matched with the response. This...

Improper Validation of Certificate with Host Mismatch

Overview Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the HostnameUtil class, whose "match CN when no dNSName SAN exists" fallback is gated on Properties.isOverrideSetJSSEHOSTNAMECHECKCNFALLBACK, true, which returns true when the...

Improper Validation of Certificate with Host Mismatch

Overview Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the HostnameUtil class, whose "match CN when no dNSName SAN exists" fallback is gated on Properties.isOverrideSetJSSEHOSTNAMECHECKCNFALLBACK, true, which returns true when the...

RHEL 10 : thunderbird (RHSA-2026:49621)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:49621 advisory. Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Site isolation issue in the DOM:...

Virtuozzo Infrastructure 7.4 Hotfix 1 (7.4.0-75)

This update provides stability fixes. Vulnerability id: VSTOR-102068, VSTOR-102069, VSTOR-138302 Creating a VM in a server group could fail with "No valid host found" because a previously canceled or failed VM remained in the server group. Vulnerability id: VSTOR-120923 VPN could stop working whe...

ALSA-2026:49520 Important: ldns security update

The ldns packages contain 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. Security Fixes: ldns: ldns: Off-path poisoning attacks due to...

RHEL 10 / 8 / 9 : Red Hat JBoss Enterprise Application Platform 8.1.7 (RHSA-2026:49700)

The remote Redhat Enterprise Linux 10 / 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:49700 advisory. Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This...