Improper Certificate Validation

Overview org.bouncycastle:bcprov-debug-jdk15on is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Improper Certificate Validation in the isEmailConstrained and isURIConstrained methods of PKIXNameConstraintValidator, which compare rfc822Name...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the isEmailConstrained and isURIConstrained methods of PKIXNameConstraintValidator, which compare rfc822Name and URI subjectAltName values with a bare equalsIgnoreCase and do not strip a trailing dot t...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the isEmailConstrained and isURIConstrained methods of PKIXNameConstraintValidator, which compare rfc822Name and URI subjectAltName values with a bare equalsIgnoreCase and do not strip a trailing dot t...

Improper Certificate Validation

Overview org.bouncycastle:bcprov-jdk15to18 is a Java implementation of cryptographic algorithms. Affected versions of this package are vulnerable to Improper Certificate Validation in the isEmailConstrained and isURIConstrained methods of PKIXNameConstraintValidator, which compare rfc822Name and...

Improper Certificate Validation

Overview Affected versions of this package are vulnerable to Improper Certificate Validation in the isEmailConstrained and isURIConstrained methods of PKIXNameConstraintValidator, which compare rfc822Name and URI subjectAltName values with a bare equalsIgnoreCase and do not strip a trailing dot t...

Important: Red Hat Security Advisory: rhc security update

An update for rhc is now available for Red Hat Enterprise Linux 9.4 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 availab...

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/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security TLS session resumption when certificate authority CA settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing ...

TencentOS Server 4: freerdp (TSSA-2026:0775)

The version of Tencent Linux installed on the remote TencentOS Server 4 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the TSSA-2026:0775 advisory. Package updates are available for TencentOS Server 4 that fix the following vulnerabilities:...

PT-2026-67451

A certification validation weakness exists in communication between affected Omada devices and cloud controllers. Certificate identity verification does not adequately validate that a presented certificate corresponds to the expected cloud controller hostname, which may allow certificate validati...

RHEL 10 : osbuild-composer (RHSA-2026:49526)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:49526 advisory. A service for building customized OS artifacts, such as VM images and OSTree commits, that uses osbuild under the hood. Besides building...

Linux Distros Unpatched Vulnerability : CVE-2026-66402

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.29.0 affected versions = 3.28.0 contains multiple TLS certificate identity validation weaknesses in tlsverifycertificate, tlsmatchhostname, and...

Linux Distros Unpatched Vulnerability : CVE-2026-67294

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - FreeRDP before 3.29.0 improperly validates the Extended Key Usage EKU purpose of the peer certificate during client-side server TLS authentication. In...

CVE-2026-66402

FreeRDP before 3.29.0 affected versions = 3.28.0 contains multiple TLS certificate identity validation weaknesses in tlsverifycertificate, tlsmatchhostname, and x509utilsgetdnsnames. Because FreeRDP performs custom Common Name and DNS SAN string matching instead of using OpenSSL's length-aware...

UBUNTU-CVE-2026-67294

FreeRDP before 3.29.0 improperly validates the Extended Key Usage EKU purpose of the peer certificate during client-side server TLS authentication. In x509utilsverify, when server-purpose X509PURPOSESSLSERVER verification fails, the code falls back to client-purpose and any-purpose verification, ...

EUVD-2026-51842

FreeRDP before 3.29.0 improperly validates the Extended Key Usage EKU purpose of the peer certificate during client-side server TLS authentication. In x509utilsverify, when server-purpose X509PURPOSESSLSERVER verification fails, the code falls back to client-purpose and any-purpose verification, ...

CVE-2026-66402

FreeRDP before 3.29.0 affected versions = 3.28.0 contains multiple TLS certificate identity validation weaknesses in tlsverifycertificate, tlsmatchhostname, and x509utilsgetdnsnames. Because FreeRDP performs custom Common Name and DNS SAN string matching instead of using OpenSSL's length-aware...

CVE-2026-67294 FreeRDP before 3.29.0 TLS Certificate EKU Bypass

FreeRDP before 3.29.0 improperly validates the Extended Key Usage EKU purpose of the peer certificate during client-side server TLS authentication. In x509utilsverify, when server-purpose X509PURPOSESSLSERVER verification fails, the code falls back to client-purpose and any-purpose verification, ...

CVE-2026-67294

FreeRDP before 3.29.0 improperly validates the Extended Key Usage EKU purpose of the peer certificate during client-side server TLS authentication. In x509utilsverify, when server-purpose X509PURPOSESSLSERVER verification fails, the code falls back to client-purpose and any-purpose verification, ...

CVE-2026-66402

CVE-2026-66402 affects FreeRDP up to and including 3.28.x, fixed in 3.29.0. The issue arises from TLS identity validation weaknesses in tls_verify_certificate(), tls_match_hostname(), and x509_utils_get_dns_names(). FreeRDP uses custom Common Name and DNS SAN matching instead of OpenSSL’s length-...