CVE-2026-54291

A flaw was found in pgjdbc, an open-source PostgreSQL JDBC Driver. A remote attacker who can intercept a TLS Transport Layer Security connection can silently downgrade connections configured to require channel binding from SCRAM-SHA-256-PLUS to plain SCRAM-SHA-256. This downgrade bypasses the...

PT-2026-62071

Name of the Vulnerable Software and Affected Versions s2n-tls versions prior to v1.7.6 Description Missing validation of the outer content type byte on TLS 1.3 encrypted records allows an active man-in-the-middle to silently discard individual application data records without detection by either...

tomcat9 security update

1:9.0.117-2 - Resolves: RHEL-185571 Remove tomcat clustering JAR from RPM builds 1:9.0.117-1 - Resolves: RHEL-150720 Tomcat: Certificate revocation bypass due to improper OCSP response validation CVE-2026-24734 - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is...

GHSA-QVW7-JM5C-6HQW Microsoft Security Advisory CVE-2026-50528 – .NET Security Feature Bypass Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET TLS/SSL System.Net.Security. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A security feature bypass...

Microsoft Security Advisory CVE-2026-50528 – .NET Security Feature Bypass Vulnerability

Executive summary Microsoft is releasing this security advisory to provide information about a vulnerability in .NET TLS/SSL System.Net.Security. This advisory also provides guidance on what developers can do to update their applications to remove this vulnerability. A security feature bypass...

Updated golang packages fix security vulnerabilities

The updated packages fix security vulnerabilities: mime: quadratic complexity in WordDecoder.DecodeHeader. CVE-2026-42504 net/textproto: arbitrary input are included in errors without any escaping. CVE-2026-42507 crypto/x509: split candidate hostname only once. CVE-2026-27145 os: Root escape via...

CVE-2026-64046

A flaw was found in the Linux kernel's network Transport Layer Security TLS subsystem. An issue in how scatterlist entries are chained could lead to illegal input being provided to cryptographic operations. This could potentially affect the integrity of TLS communications...

CVE-2026-64047

A flaw was found in the Linux kernel's Transport Layer Security TLS component. An off-by-one error in how memory is managed for network messages can lead to memory corruption. This vulnerability may allow a local attacker to cause the system to crash, resulting in a denial of service DoS...

nodejs: Node.js: Certification validation bypass in TLS host verification

A flaw was found in Node.js. An attacker can exploit a vulnerability in the Transport Layer Security TLS host verification process to bypass certification validation. This bypass could allow an attacker to intercept or alter communications, potentially leading to information disclosure or integri...

nodejs: Node.js: Authentication bypass due to TLS hostname handling and unicode dot separator mismatch

A flaw was found in Node.js. This flaw involves a mismatch in how Node.js handles TLS Transport Layer Security hostnames and unicode dot separators during authentication. This mismatch can lead to a wildcard-depth authentication bypass. An attacker could exploit this to bypass intended security...

USN-8564-1: PHP vulnerabilities

It was discovered that PHP incorrectly handled certain TLS setup failures, resulting in a NULL pointer dereference. An attacker could possibly use this issue to cause PHP to crash, resulting in a denial of service. This issue only affected Ubuntu 26.04 LTS. CVE-2026-12184 It was discovered that P...

netty-handler: Netty: Denial of Service due to eager buffer allocation in TLS handshake

A flaw was found in Netty, a network application framework. A remote attacker can exploit this vulnerability by sending a crafted TLS Transport Layer Security ClientHello message. This can lead to an eager allocation of a large memory buffer, causing a Denial of Service DoS due to excessive memor...

CVE-2026-64046

In the Linux kernel, the following vulnerability has been resolved: net: tls: prevent chain-after-chain in plain text SG Sashiko points out that if end = 0 start != 0 the current code will create a chain link to content type right after the wrap link: This would create a chain where the wrap link...

CVE-2026-64025

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX context is present, avoiding a conflict with the TLS strparser's ownership...

EUVD-2026-45619

In the Linux kernel, the following vulnerability has been resolved: net: tls: prevent chain-after-chain in plain text SG Sashiko points out that if end = 0 start != 0 the current code will create a chain link to content type right after the wrap link: This would create a chain where the wrap link...

EUVD-2026-45620

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix off-by-one in sgchain entry count for wrapped skmsg ring When an skmsg scatterlist ring wraps sg.end sg.datamsgpl-sg.start, MAXSKBFRAGS - msgpl-sg.start + 1, msgpl-sg.data; This places the chain pointer at...

CVE-2026-64046

In the Linux kernel, the following vulnerability has been resolved: net: tls: prevent chain-after-chain in plain text SG Sashiko points out that if end = 0 start != 0 the current code will create a chain link to content type right after the wrap link: This would create a chain where the wrap link...

CVE-2026-64046

CVE-2026-64046 concerns a Linux kernel TLS issue where a chain-after-chain in the scatterlist could arise when end = 0 (start != 0). The bug creates a chain link to the content type immediately after the wrap link, and sg_next does not recursively resolve consecutive chain links, making the input...

CVE-2026-64046 net: tls: prevent chain-after-chain in plain text SG

In the Linux kernel, the following vulnerability has been resolved: net: tls: prevent chain-after-chain in plain text SG Sashiko points out that if end = 0 start != 0 the current code will create a chain link to content type right after the wrap link: This would create a chain where the wrap link...

CVE-2026-64047 net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix off-by-one in sgchain entry count for wrapped skmsg ring When an skmsg scatterlist ring wraps sg.end sg.datamsgpl-sg.start, MAXSKBFRAGS - msgpl-sg.start + 1, msgpl-sg.data; This places the chain pointer at...