UBUNTU-CVE-2026-59818

etcd is a distributed key-value store for the data of a distributed system. Prior to 3.5.32 and 3.6.13, when etcd is configured with --listen-client-http-urls to split HTTP and gRPC client endpoints onto separate listeners, the --client-crl-file Certificate Revocation List is not enforced on the...

Apache Tomcat: Apache Tomcat: Authentication bypass via client certificate misconfiguration

A flaw was found in Apache Tomcat where OCSP-based certificate validation may incorrectly soft-fail during CLIENTCERT authentication, even when soft-fail is disabled, under certain FFM-related execution paths. This can result in client certificates being accepted despite failed or unverifiable...

tomcat: Client certificate verification bypass due to virtual host mapping

A certificate validation flaw has been found in Apache Tomcat. omcat did not validate that the host name provided via the SNI extension was the same as the host name provided in the HTTP host header field. If Tomcat was configured with more than one virtual host and the TLS configuration for one ...

Apache Tomcat: Apache Tomcat: Authentication bypass due to CLIENT_CERT soft fail misconfiguration

A flaw was found in Apache Tomcat and Apache Tomcat Native. When CLIENTCERT authentication is configured with "soft fail" disabled, the authentication process may not correctly fail in certain scenarios. This vulnerability could allow an attacker to bypass expected client certificate...

CVE-2026-8932

libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS...

EUVD-2026-41509

libcurl would reuse a previously created connection even when some mTLS config related option had been changed that should have prohibited reuse. libcurl keeps previously used connections in a connection pool for subsequent transfers to reuse if one of them matches the setup. However, some TLS...

CVE-2026-8932

CVE-2026-8932 : The vulnerability describes incomplete mTLS config matching in libcurl’s connection reuse logic. A previously used TLS client-certificate-related setting (notably the private key) was omitted from the configuration match checks, causing connections in the pool to be reused even wh...

CVE-2026-58165 OpenZiti - Privilege Escalation to Admin via Unauthorized Enrollment Creation

OpenZiti through 2.0.0, fixed in commit 3027fdf, contains a privilege escalation vulnerability that allows authenticated non-admin identities with fine-grained enrollment management permissions to create enrollments for any identity, including the default administrator, because the ApplyCreate...

EUVD-2026-40371

OpenZiti through 2.0.0, fixed in commit 3027fdf, contains a privilege escalation vulnerability that allows authenticated non-admin identities with fine-grained enrollment management permissions to create enrollments for any identity, including the default administrator, because the ApplyCreate...

CVE-2026-58165 OpenZiti - Privilege Escalation to Admin via Unauthorized Enrollment Creation

OpenZiti through 2.0.0, fixed in commit 3027fdf, contains a privilege escalation vulnerability that allows authenticated non-admin identities with fine-grained enrollment management permissions to create enrollments for any identity, including the default administrator, because the ApplyCreate...

PT-2026-53916

Name of the Vulnerable Software and Affected Versions OpenZiti versions prior to 2.0.1 Description A privilege escalation flaw exists in the controller enrollment management path. An authenticated non-admin identity with fine-grained enrollment management permissions can create enrollments for an...

PYSEC-2026-575 wolfSSL Python module vulnerable to Improper Authentication

A vulnerability in the handling of verifymode = CERTREQUIRED in the wolfssl Python package wolfssl-py causes client certificate requirements to not be fully enforced. Because the WOLFSSLVERIFYFAILIFNOPEERCERT flag was not included, the behavior effectively matched CERTOPTIONAL: a peer certificate...

Linux Distros Unpatched Vulnerability : CVE-2026-12490

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When a provide-xfr is given with a tls-auth-name, a secondary requesting a transfer should provide a client certificate with that name. However, no client...

GO-2026-5564 Open Cluster Management (OCM): Cross-cluster privilege escalation via improper Kubernetes client certificate renewal validation in open-cluster-management.io/ocm

Open Cluster Management OCM: Cross-cluster privilege escalation via improper Kubernetes client certificate renewal validation in open-cluster-management.io/ocm...

CVE-2026-55962

TLS 1.3 post-handshake authentication PHA issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, b...

UBUNTU-CVE-2026-55962

TLS 1.3 post-handshake authentication PHA issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, b...

CVE-2026-55962 TLS 1.3 post-handshake authentication: server accepts Finished without client Certificate/CertificateVerify

TLS 1.3 post-handshake authentication PHA issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, b...

CVE-2026-55962

CVE-2026-55962 (WolfSSL) : TLS 1.3 post-handshake authentication could allow a server to accept a client’s Finished message without a Certificate and CertificateVerify if a post-handshake CertificateRequest was outstanding. The fix scopes the check to the initial handshake: after certReqCtx is se...

CVE-2026-55962

TLS 1.3 post-handshake authentication PHA issue where a server could accept a client's Finished message without the client having sent a Certificate and CertificateVerify. The post-handshake-auth exemption that allows an empty/absent peer certificate was only intended for the initial handshake, b...

DEBIAN-CVE-2026-55960

Un-negotiated Raw Public Key RFC 7250 accepted in place of an X.509 certificate, bypassing chain validation. A raw public key has no chain, so ParseCertRelative accepts it without performing any trust verification; it must therefore only be accepted when RPK was actually negotiated for that peer...