CVE-2026-35389

CVE-2026-35389 affects Bulwark Webmail (self-hosted client for Stalwart Mail Server). Before version 1.4.11, S/MIME signature verification did not validate the certificate trust chain (checkChain: false), causing emails signed with self-signed or untrusted certificates to appear as having a valid...

CVE-2026-35389 Bulwark Webmail S/MIME signature verification accepted self-signed certificates

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, S/MIME signature verification did not validate the certificate trust chain checkChain: false. Any email signed with a self-signed or untrusted certificate was displayed as having a valid signature. This...

EUVD-2026-19478

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, S/MIME signature verification did not validate the certificate trust chain checkChain: false. Any email signed with a self-signed or untrusted certificate was displayed as having a valid signature. This...

JLSEC-2026-57

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser...

CVE-2026-35560

Improper certificate validation in the identity provider connection components in Amazon Athena ODBC driver before 2.1.0.0 might allow a man-in-the-middle threat actor to intercept authentication credentials due to insufficient default transport security when connecting to identity providers. Thi...

gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification

A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...

Moderate: Red Hat Security Advisory: gnutls security update

An update for gnutls is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

Moderate: Red Hat Security Advisory: gnutls security update

An update for gnutls is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for...

gnutls: GnuTLS: Denial of Service via excessive resource consumption during certificate verification

A flaw was found in GnuTLS. This vulnerability allows a denial of service DoS by excessive CPU Central Processing Unit and memory consumption via specially crafted malicious certificates containing a large number of name constraints and subject alternative names SANs...

RHEL 10 : gnutls (RHSA-2026:6618)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:6618 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such as SSL, TL...

PT-2026-30727

Bulwark Webmail is a self-hosted webmail client for Stalwart Mail Server. Prior to 1.4.11, S/MIME signature verification did not validate the certificate trust chain checkChain: false. Any email signed with a self-signed or untrusted certificate was displayed as having a valid signature. This...

Bulwark Webmail 信任管理问题漏洞

Bulwark Webmail is an open-source, self-hosted webmail client developed by Bulwark Mail. Versions of Bulwark Webmail prior to 1.4.11 had a trust management vulnerability. This vulnerability stemmed from the lack of checking the certificate trust chain during S/MIME signature verification, which...

RHEL 9 : gnutls (RHSA-2026:6630)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:6630 advisory. The gnutls packages provide the GNU Transport Layer Security GnuTLS library, which implements cryptographic algorithms and protocols such as SSL, TLS...

Merkle Tree Certificate Post-Quantum PKI for Kubernetes and Cloud-Native 5G/B5G Core

Post-quantum signature schemes such as ML-DSA-65 produce signatures of 3,309 bytes and public keys of 1,952 bytes over 50 times larger than classical Ed25519. In TLS-authenticated environments like Kubernetes control planes and 5G Core networks, where every inter-component connection is mutually...

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 ...

tomcat: Apache Tomcat: Certificate revocation bypass due to improper OCSP response validation

A flaw was found in Apache Tomcat. When an Online Certificate Status Protocol OCSP responder is used, the Tomcat Native component, and Tomcat's FFM port of the Tomcat Native code, does not properly verify or check the freshness of the OCSP response. This improper input validation vulnerability...

OpenSSH before 10.3 mishandles the authorized_keys principals option in uncommon scenarios involving a principals list in conjunction with a Certificate Authority that makes certain use of comma characters.

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Fixed in Apache Tomcat 11.0.21

Moderate: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 CLIENTCERT authentication did not fail as expected for some scenarios when soft fail was disabled and FFM was used. This was fixed with commit c13e60e7. This issue was reported to the Tomcat security...

openSUSE 16 Security Update : tomcat10 (openSUSE-SU-2026:20444-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20444-1 advisory. Update to Tomcat 10.1.52: - CVE-2025-55752: directory traversal via rewrite with possible RCE if PUT is enabled bsc1252753. - CVE-2025-55754:...

openSUSE 16 Security Update : gnutls (openSUSE-SU-2026:20446-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20446-1 advisory. - CVE-2025-14831: Fixed DoS via excessive resource consumption during certificate verification. bsc1257960 - CVE-2025-9820: Fixed a buffer...