gnutls: gnutls: Certificate validation bypass due to oversized Subject Alternative Name

A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name SAN could cause the validation process to incorrectly fall back to checking the Common Name CN field. This could allow a remote attacker to bypass proper certificate validation, potentially leading to...

Important: Red Hat Security Advisory: gnutls security update

An update for gnutls is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

PT-2026-61539

Name of the Vulnerable Software and Affected Versions Konnectivity proxy-server affected versions not specified Description A flaw in the configuration of the proxy-server for hosted control planes allows the agent-facing listener to start without the --cluster-ca-cert flag and without token-base...

TencentOS Server 3: container-tools:rhel8 (TSSA-2026:0671)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0671 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

ALSA-2026:41947 Important: nodejs:22 security, bug fix, and enhancement update

Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language. Security Fixes: ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

PT-2026-61720

Name of the Vulnerable Software and Affected Versions Apache MINA SSHD versions prior to 2.19.0 Apache MINA SSHD versions prior to 3.0.0-M5 Description Improper certificate validation occurs during server-side OpenSSH user authentication. The server fails to check or validate the force-command or...

RHEL 9 : gnutls (RHSA-2026:41921)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:41921 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such a...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

Improper Validation of Certificate with Host Mismatch

Overview snowflake-connector-python is a Snowflake Connector for Python Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch in the TLS certificate verification process. An attacker can intercept sensitive data, tamper with queries, or execute...

CVE-2026-15925 Improper TLS Hostname Verification in Snowflake Connector for Python

Improper TLS hostname verification in Snowflake Connector for Python versions prior to 4.7.1 and 3.18.1 may have allowed a network-positioned attacker to bypass certificate hostname validation on HTTPS connections made by the connector. An attacker with on-path network access could exploit this b...

AlmaLinux 8 : nodejs:24 (ALSA-2026:39868)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:39868 advisory. ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input CVE-2026-42338 undici: undici: Denial of Service due to...

Alibaba Cloud Linux 3 : 0198: podman and buildah (ALINUX3-SA-2026:0198)

The remote Alibaba Cloud Linux 3 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALINUX3-SA-2026:0198 advisory. Package updates are available for Alibaba Cloud Linux 3 that fix the following vulnerabilities: CVE-2026-25679: url.Parse insufficiently...

nodejs: Node.js: Certification validation bypass in TLS host verification

A flaw was found in Node.js. An attacker can exploit a vulnerability in the Transport Layer Security TLS host verification process to bypass certification validation. This bypass could allow an attacker to intercept or alter communications, potentially leading to information disclosure or integri...

erlang: Erlang OTP public_key: Certificate validation bypass allows hostname spoofing

A flaw was found in Erlang OTP publickey. This improper certificate validation vulnerability allows a subordinate Certificate Authority CA with restricted DNS nameConstraints to bypass these restrictions. By issuing a leaf certificate that lacks a Subject Alternative Name SAN but contains a craft...

erlang: Erlang OTP public_key: Certificate chain forgery via improper trust chain validation

A flaw was found in Erlang OTP's publickey module. This vulnerability CWE-295, related to improper certificate validation, allows a non-Certificate Authority CA certificate to be accepted as an intermediate issuer. A remote attacker, holding an end-entity certificate issued by a trusted CA, can...

Important: Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (golang-github-openstack-k8s-operators-os-diff) security update

An update for golang-github-openstack-k8s-operators-os-diff is now available for Red Hat OpenStack Services on OpenShift 18.0 Antelope. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

crypto/x509: golang: Go crypto/x509: Denial of Service via inefficient certificate chain validation

A flaw was found in Go's crypto/x509 package. A remote attacker could exploit this by presenting a specially crafted certificate chain containing a large number of policy mappings. This inefficient validation process consumes excessive resources, which can lead to a denial of service DoS for...

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...