Security · October 1, 2026

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Apple Releases Security Update for macOS

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Apple released a security update on September 28, 2026, for "macOS Tahoe" and "macOS Sequoia" to address vulnerabilities.

The update responds to a vulnerability related to image processing in "CoreGraphics," identified as "CVE-2026-86950," which may allow arbitrary code execution. This vulnerability involves writing to out-of-bounds memory, posing risks when processing manipulated files.

Reports indicate that the same vulnerability might have been exploited in advanced attacks targeting specific individuals on versions of the operating system prior to "iOS 27."

The vulnerability has a base score of "8.8" on the Common Vulnerability Scoring System "CVSSv3.1," classified as "High" on a scale of four levels.

Apple released "macOS Tahoe 26.7.1" and "macOS Sequoia 15.8.1," effectively resolving the vulnerability. Additionally, the latest security update for the operating system, "macOS Golden Gate 27.0.1," was also published, although specific details about addressed CVE numbers have not been disclosed.