CVE-2026-77405 RabbitMQ amqp091-go: Missing Explicit TLS Minimum Version Configuration In URI Parser

RabbitMQ amqp091-go is a Go AMQP 0.9.1 client. Prior to 1.13.0, tlsConfigFromURI in uri.go creates tls.Config values without setting MinVersion to tls.VersionTLS12. Builds using a Go runtime whose default permits TLS 1.0 or TLS 1.1 can therefore negotiate an obsolete protocol version when...

Astra Linux – Vulnerability in OpenSSL

Issue Summary: Some non-default TLS server configurations can cause unbounded memory growth when processing TLSv1.3 sessions. Impact Summary: Attackers may exploit certain server configurations to trigger unbounded memory growth, leading to a Denial of Service attack. This issue can occur in...

CVE-2026-56609: Use of a Broken or Risky Cryptographic Algorithm

HCL iControl is affected by Weak SSL/TLS Version Supported vulnerability. It was observed that the application was using weak TLS versions such as TLS 1.0 and 1.1. These outdated protocols lack modern security features, making them vulnerable to known attacks and exposing sensitive information...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

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

Summary 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...

CVE-2026-16318

A flaw was found in s2n-tls, a Transport Layer Security TLS implementation. An unauthenticated remote attacker can exploit a memory leak in the QUIC transport parameters extension handler. By repeatedly forcing HelloRetryRequests during a TLS 1.3 connection, an attacker can cause the server proce...

CVE-2026-4942

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote attacker to send a specifically crafted message and downgrade the Transport Layer Security TLS protocol to a version disabled in the server configuration...

JLSEC-2026-687 With TLS 1.2 connections a client can use any digest, specifically a weaker digest that is...

With TLS 1.2 connections a client can use any digest, specifically a weaker digest that is supported, rather than those in the CertificateRequest...

JLSEC-2026-676 If a TLS 1.3 client gets neither a PSK (pre shared key) extension nor a KSE (key share extension)...

If a TLS 1.3 client gets neither a PSK pre shared key extension nor a KSE key share extension when connecting to a malicious server, a default predictable buffer gets used for the IKM Input Keying Material value when generating the session master secret. Using a potentially known IKM value when...

Erlang/OTP 22.2 < 27.3.4.14 / 28.0 < 28.5.0.3 / 29.0 < 29.0.3 DoS (CVE-2026-55952)

The version of Erlang/OTP installed on the remote host is 22.2 prior to 27.3.4.14, 28.0 prior to 28.5.0.3, or 29.0 prior to 29.0.3. It is, therefore, affected by a vulnerability: - The Erlang/OTP ssl application does not validate that the PSK identity list and binder list carried in a TLS 1.3...

CVE-2026-54891

Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability in Erlang/OTP ssl tlsgenconnection module allows a network-positioned attacker to inject unauthenticated plaintext that the TLS client application later treats as authenticated server data. The...

UBUNTU-CVE-2026-55952

The Erlang/OTP ssl application does not validate that the PSK identity list and binder list carried in a TLS 1.3 ClientHello pre-shared key extension have equal length before passing them to the session ticket handler. In tlshandshake13:handlepresharedkey/3, an OfferedPreSharedKeys record with a...

CVE-2026-54891 Plaintext APPLICATION_DATA injected during TLS handshake delivered to client application post-handshake in ssl

Improper Enforcement of Message Integrity During Transmission in a Communication Channel vulnerability in Erlang/OTP ssl tlsgenconnection module allows a network-positioned attacker to inject unauthenticated plaintext that the TLS client application later treats as authenticated server data. The...

CVE-2026-7531

Use-after-free in PQC hybrid key-share handling. This is an incomplete-fix follow-up to CVE-2026-5460 released in 5.9.1: a malicious TLS 1.3 server sending a truncated PQC hybrid KeyShare can still trigger the error cleanup path to operate on freed memory...

openssl security update

1:1.1.1k-16 - Fix CVE-2026-45447: Heap Use-After-Free in OpenSSL PKCS7verify Resolves: RHEL-180978 - Fix CVE-2024-4741: Use After Free with SSLfreebuffers Resolves: RHEL-180983 1:1.1.1k-15 - Fix CVE-2025-69419: Arbitrary code execution due to out-of-bounds write in PKCS12 processing...

crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages

A flaw was found in the crypto/tls package within the Go golang standard library, specifically affecting TLS 1.3 connections. A remote attacker can exploit this vulnerability by sending multiple key update messages in a single record after the handshake. This can cause the connection to deadlock,...

PT-2026-39574

Zephyr sockets created with IPPROTO TLS 1 3 can still negotiate a TLS 1.2 connection when both TLS versions are enabled in Kconfig, because the socket-level protocol selection is not propagated to mbedTLS e.g. via mbedtls ssl conf min tls version. The ClientHello advertises both versions and the...

Cisco Firepower Threat Defense (FTD) Software SSL Decryption Policy DoS (cisco-sa-ftd-dnd-dos-bpEcg7B7)

According to its self-reported version, Cisco Secure Firewall Threat Defense FTD Software is affected by a vulnerability. - A vulnerability in the Do Not Decrypt exclusion feature of the SSL decryption feature of Cisco Secure Firewall Threat Defense FTD Software could allow an unauthenticated,...

GHSA-5568-6QCG-G7FX Apache ActiveMQ: Denial of Service via Out of Memory vulnerability

Denial of Service via Out of Memory vulnerability in Apache ActiveMQ Client, Apache ActiveMQ Broker, Apache ActiveMQ. ActiveMQ NIO SSL transports do not correctly handle TLSv1.3 handshake KeyUpdates triggered by clients. This makes it possible for a client to rapidly trigger updates which causes...

CVE-2026-39304

The Apache ActiveMQ messaging middleware (including Client and Broker components) is vulnerable to a Denial of Service (DoS) via Out of Memory (OOM) . The root cause is the incorrect handling of TLSv1.3 handshake KeyUpdates within the ActiveMQ NIO SSL transports . A malicious client can rapidly t...