DNS signing DoS via TKEY name cache exhaustion

== Summary: An unauthenticated user can repeatedly register names TKEY names, which floods a cache causing legitimate TKEYs to be expunged. This can practically block the use DNS TSIG signing. Description Only authenticated users are supposed to be able to use TKEY DNS records to register shared...

July 28, 2026—KB5101681 (OS Build 28000.2608) Preview

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CVE-2026-64545

In the Linux kernel, the following vulnerability has been resolved: net, bpf: check master for NULL in xdpmasterredirect xdpmasterredirect dereferences the result of netdevmasterupperdevgetrcu without a NULL check, but that helper returns NULL when the receiving device has no upper-master...

CVE-2026-43681

A buffer overflow was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. A local user may be able to read kernel memory...

CVE-2026-43757

An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination...

CVE-2026-64711

This issue was addressed with additional entitlement checks. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to leak sensitive user information...

CVE-2026-28911

The issue was addressed with improved memory handling. This issue is fixed in macOS Sonoma 14.8.8, macOS Tahoe 26.6. A malicious app may be able to corrupt memory of a system process...

CVE-2026-64731

A path handling issue was addressed with improved validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. A malicious app may be able to break out of its sandbox...

CVE-2026-43793

CVE-2026-43793 affects macOS environments where improper handling of environment variables could lead to unexpected system termination. Connected sources confirm concrete remediation: Apple has fixed the issue in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, and macOS Tahoe 26.6. The root cause is n...

EUVD-2026-49530

An information leakage was addressed with additional validation. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to disclose kernel memory...

CVE-2026-43768

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination...

EUVD-2026-49497

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Tahoe 26.6. An app may be able to cause unexpected system termination...

CVE-2026-64734

The issue was addressed with improved checks. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted contact may leak sensitive data...

EUVD-2026-49596

In the Linux kernel, the following vulnerability has been resolved: net, bpf: check master for NULL in xdpmasterredirect xdpmasterredirect dereferences the result of netdevmasterupperdevgetrcu without a NULL check, but that helper returns NULL when the receiving device has no upper-master...

GO-2026-6070 Gitea: draft release attachment disclosure via missing web authorization in gitea.dev

Gitea: draft release attachment disclosure via missing web authorization in gitea.dev...

Important: Red Hat Security Advisory: OpenShift Virtualization v4.19 Images

Red Hat OpenShift Virtualization release v4.19 is now available with updates to packages and images that fix several bugs and add enhancements. OpenShift Virtualization is Red Hat's virtualization solution designed for Red Hat OpenShift Container Platform. This advisory contains OpenShift...

CVE-2026-64531

CVE-2026-64531 describes a Linux kernel issue in net/openvswitch: generated flow actions stored as nlattrs can exceed the 16-bit nla_len, allowing an oversized container to be closed with a truncated length. The fix preserves large total-action streams but rejects nested action containers that do...

Security Bulletin: Multiple vulnerabilities in IBM Semeru Runtime affect IBM Sterling External Authentication Server

Summary Multiple vulnerabilities in IBM® Semeru Runtime Environment Version 17 affect IBM Sterling External Authentication Server and are addressed in the latest release and fixpack Vulnerability Details CVEID:CVE-2026-22016 DESCRIPTION: Easily exploitable vulnerability allows unauthenticated...

PT-2026-65166

Name of the Vulnerable Software and Affected Versions macOS Sonoma versions prior to 14.8.8 macOS Tahoe versions prior to 26.6 Description An access issue exists where an application may be able to access user-sensitive data. This is addressed by implementing improved access restrictions...

PT-2026-65148

Name of the Vulnerable Software and Affected Versions macOS versions prior to Tahoe 26.6 Description An attacker may be able to modify the state of the Keychain due to improper state management. Recommendations Update to macOS Tahoe 26.6...