Live › vulnerability › CVE-2026-86958
Go to dashboardA memory-handling flaw in macOS lets an attacker who already has memory write capability bypass pointer authentication codes. The sources say this can lead to arbitrary code execution.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-26 21:55 UTC. All times on this page are UTC.
Mac machines running macOS releases older than the fixed versions. The description requires an attacker who already has memory write capability, so the exposure is mainly to processes or users already running code on the machine. The sources do not say which configurations or services are most at risk.
No product ranges from the sources yet.
sw_vers -productVersion and compare against the fixed builds listed in the advisory: macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2.15.8.2, or Tahoe 26.7.2, or later.Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. An attacker with memory write capability may be able to bypass pointer authentication codes and run arbitrary code.
This page as .md · .json · in your agent: get_signal("CVE-2026-86958")
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.