CVE-2026-31430

In the Linux kernel, the following vulnerability has been resolved: X.509: Fix out-of-bounds access when parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before...

CVE-2026-31430

CVE-2026-31430 affects the Linux kernel: X.509 extensions parsing could read the first byte of an extension before checking length, causing out-of-bounds access. The vulnerability can be triggered by an unprivileged user submitting a crafted certificate via the keyrings(7) API. A PoC exists. The ...

CVE-2026-31430

In the Linux kernel, the following vulnerability has been resolved: X.509: Fix out-of-bounds access when parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage extension because the first byte of the extension is read before...

OPENSUSE-SU-2026:20566-1 Security update for Botan

This update for Botan fixes the following issue: - CVE-2026-32884: Certificate validation bypass due to mixed-case Common Name in X.509 certificates bsc1261993...

crypto/x509: Incorrect enforcement of email constraints in crypto/x509

A certificate validation flaw has been discovered in the golang crypto/x509 module. When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly...

ROS-20260420-73-0016

A vulnerability in the maxcertlist parameter of certificate compression in TLS 1.3 of the OpenSSL library is related to uncontrolled memory allocation. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial of service...

ROS-20260420-73-0042

Vulnerability in incus related to errors in certificate authentication procedure. The vulnerability can be exploited remotely...

PT-2026-33881

Name of the Vulnerable Software and Affected Versions OpenBao versions prior to 2.5.3 Description The Certificate authentication method contains a flaw during token renewal when disable binding=true is configured. The system incorrectly verifies if the mTLS certificate presented during a renewal...

RHEL 9 : skopeo (RHSA-2026:9098)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9098 advisory. The skopeo command lets you inspect images from container image registries, get images and image layers, and use signatures to create and...

Unauthorized User Impersonation when Using X.509 Client Certificates

SubjectX500PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user...

RHEL 9 : gvisor-tap-vsock (RHSA-2026:9108)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:9108 advisory. A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor. Compared to libslirp, gvisor-tap-vsoc...

Linux kernel 安全漏洞

The Linux kernel is the kernel used by the Linux operating system developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from reading data without checking its length when parsing X.509 certificates. This can lead to out-of-bound...

ALSA-2026:8842 Important: delve security update

Delve is a debugger for the Go programming language. The goal of the project is to provide a simple, full featured debugging tool for Go. Delve should be easy to invoke and easy to use. Chances are if you're using a debugger, things aren't going your way. With that in mind, Delve should stay out ...

Linux Distros Unpatched Vulnerability : CVE-2026-31430

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - X.509: Fix out-of-bounds access when parsing extensions Leo reports an out-of-bounds access when parsing a certificate with empty Basic Constraints or Key Usage...

PT-2026-33747

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds access occurs when parsing X.509 certificates containing empty Basic Constraints or Key Usage extensions. This happens because the first byte of the extension is read...

kernel security update

5.14.0-611.49.1 - Disable UKI signing Orabug: 36571828 - Update Oracle Linux certificates Kevin Lyons - Disable signing for aarch64 Ilya Okomin - Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list olkmodsigningkey.pem Orabug: 29539237 - Update x509.genkey Orabug:...

Exploit for Improper Certificate Validation in Wolfssl

CVE-2026-5194 - Security Vulnerability Quick Usage bas...

April 19, 2026—KB5091575 (OS Build 20348.5024) Out-of-band

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April 19, 2026—KB5091573 (OS Build 17763.8647) Out-of-band

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Security Bulletin: Multiple vulnerabilities in IBM Tivoli Network Configuration Manager IP Edition (ITNCM)

Summary Multiple vulnerabilities were addressed in ITNCM version 6.4.2 Fix Pack 24 6.4.2.24 Vulnerability Details CVEID:CVE-2025-68161 DESCRIPTION: The Socket Appender in Apache Log4j Core versions 2.0-beta9 through 2.25.2 does not perform TLS hostname verification of the peer certificate, even...