CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

CVE-2026-55953 TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication

The Erlang/OTP ssl TLS 1.2 and earlier and DTLS client does not verify that the cipher suite selected by the server in ServerHello was among the suites offered by the client in ClientHello. The client-side tlshandshake:hello/5 handler validates the negotiated protocol version and the downgrade...

CVE-2026-58227 TLS/DTLS denial of service via unbounded recursion on cross-signed peer certificate chain

The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer certificate chain during a TLS or DTLS handshake. In sslcertificate:handleincompletechain/5, the received chain is passed to sslcertificate:buildcertificatechain/5, which walks issuer relationships via...

Security update for java-11-openjdk

This update for java-11-openjdk fixes the following issues Upgrade to upstream tag jdk-11.0.32+9 July 2026 CPU. Security issues fixed: CVE-2026-41254: lcms: information disclosure and denial of service via integer overflow in CubeSize bsc1264994. CVE-2026-46917: unauthenticated attacker with...

SUSE-SU-2026:3284-1 Security update for java-11-openjdk

This update for java-11-openjdk fixes the following issues Upgrade to upstream tag jdk-11.0.32+9 July 2026 CPU. Security issues fixed: - CVE-2026-41254: lcms: information disclosure and denial of service via integer overflow in CubeSize bsc1264994. - CVE-2026-46917: unauthenticated attacker with...

Security update for the Linux Kernel (Live Patch 10 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.53.34 fixes various security issues: The following security issues were fixed: CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060...

CVE-2026-48144

Apache Thrift c_glib bindings are affected by an improper validation of certificate hostnames (host mismatch) leading to a potential TLS trust issue. The issue affects Thrift before 0.24.0 and is rated CRITICAL (CVSS 4.0: AV:N/AC:H/PR:N/UI:N/S:S/VC:H/VI:H/VA:N) with high impact on confidentiality...

Erlang/OTP -- (D)TLS-1.2 server certificate verification bypass

https://github.com/erlang/otp/security/advisories/GHSA-c6cw-pr89-w882 reports: The OTP TLS/DTLS client pre TLS-1.3 does not verify that the cipher suite selected by the server in ServerHello is one of those offered in ClientHello. A man-in-the-middle attacker can select an anonymous cipher suite...

Erlang/OTP -- TLS denial of service using invalid certificate chains

https://github.com/erlang/otp/security/advisories/GHSA-r5jr-mq46-vmhw reports: A TLS/DTLS peer can crash the remote node by sending a certificate chain containing two mutually cross-signed certificates in unordered form. When the receiving side attempts to build a valid chain path, it enters...

SUSE-SU-2026:3254-1 Security update for the Linux Kernel (Live Patch 25 for SUSE Linux Enterprise 15 SP6)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.109 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060....

SUSE-SU-2026:3246-1 Security update for the Linux Kernel RT (Live Patch 14 for SUSE Linux Enterprise 15 SP7)

This update for the SUSE Linux Enterprise Kernel 6.4.0-150700.7.51 fixes various security issues: The following security issues were fixed: - CVE-2026-23240: tls: Fix race condition in tlsswcancelworktx bsc1262404. - CVE-2026-31738: vxlan: validate ND option lengths in vxlannacreate bsc1264060. -...

CVE-2026-48021

In epa4all, prior to version 2026-05-20, an attacker who can intercept the TLS connection between epa4all and the ePA backend can complete the VAU handshake with attacker-controlled keys and obtain the session encryption keys. All inner HTTP traffic patient consent decisions, medication data,...

EUVD-2026-48733

In epa4all, prior to version 2026-05-20, an attacker who can intercept the TLS connection between epa4all and the ePA backend can complete the VAU handshake with attacker-controlled keys and obtain the session encryption keys. All inner HTTP traffic patient consent decisions, medication data,...

CVE-2026-48021

CVE-2026-48021 affects epa4all prior to 2026-05-20. An attacker who can intercept TLS between epa4all and the ePA backend could complete the VAU handshake with attacker-controlled keys, deriving session encryption keys. This allows reading and modifying inner HTTP traffic (including patient conse...

SUSE CVE-2026-16317

Missing validation of the outer contenttype byte on TLS 1.3 encrypted records in s2n-tls allows an active man-in-the-middle to silently discard individual application data records without either endpoint detecting the modification. RFC 8446 Section 5.2 requires that the outer contenttype of all...

EUVD-2026-48375

An unauthenticated attacker could trigger an Out of Memory condition to crash the Java process for RHCS by repeatedly sending HTTP requests to the TLS endpoint. Depending on how the RHCS server is configured, a manual intervention to restart it may prove necessary...

Important: Red Hat Security Advisory: java-1.8.0-openjdk security update

An update for java-1.8.0-openjdk is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8.8 Extended Update Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions, Red Hat Enterprise Linux 8...

OpenStack oslo.messaging does not verify RabbitMQ broker hostname during TLS handshake

An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When sslcafile is configured, the driver enables certificate chain validation but does not pass the expect...

openjdk: Enhance TLS certificate handling (Oracle CPU 2026-07)

A flaw was found in OpenJDK. When a server has wantClientAuth and the client sends a nocertificate alert, any client certificates are not verified...

Important: Red Hat Security Advisory: OpenJDK 21.0.12 Security Update for Windows Builds

An update is now available for OpenJDK. 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 available for each vulnerability from the CVE links in the References...