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Apple CoreGraphics out-of-bounds write security flaw (CVE-2026-86950)

Vulnerability
First reported
Last updated
Happening score
H score 21
2 unique sources, 3 articles

Summary

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Apple released updates for CVE-2026-86950, an out-of-bounds write in CoreGraphics that could enable arbitrary code execution on older iOS, iPadOS, and macOS versions. The flaw was tied to processing a maliciously crafted file and was said to have been possibly exploited in targeted attacks. Apple shipped fixes across iOS 26.7.1, iPadOS 26.7.1, macOS Tahoe 26.7.1, and macOS Sequoia 15.8.1.

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Apple macOS Full Disk Access access-control tightening

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H score20 First: 05.10.2026 13:38 Last: 05.10.2026 13:38 Sources 1

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WebKit Same Origin Policy bypass (CVE-2026-20643)

Vulnerability
H score18 First: 18.03.2026 03:06 Last: 18.03.2026 03:06 Sources 1

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Latest development: 18.03.2026 08:31

Apple released its first round of Background Security Improvements to address CVE-2026-20643 in WebKit, a cross-origin issue in the Navigation API that could bypass the same-origin policy when processing maliciously crafted web content. The flaw affects iOS 26.3.1, iPadOS 26.3.1, macOS 26.3.1, and macOS 26.3.2, and Apple says it was addressed with improved input validation in iOS 26.3.1 (a), iPadOS 26.3.1 (a), macOS 26.3.1 (a), and macOS 26.3.2 (a). Apple also credits security researcher Thomas Espach with discovering and reporting the shortcoming.

Open Happening

Timeline

  1. 28.09.2026 22:18 4 articles · 14d ago

    Apple patches CVE-2026-86950 in CoreGraphics

    Mitigation Patch Update

    Apple released security updates for older versions of iOS, iPadOS, and macOS to address CVE-2026-86950, an out-of-bounds write in CoreGraphics that could lead to arbitrary code execution when processing a maliciously crafted file. Apple said the issue may have been exploited in an extremely sophisticated attack against specific targeted individuals on versions of iOS before iOS 27, said the flaw was addressed with improved bounds checking, and credited Meta Product Security with discovering and reporting it.

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