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Safari 26.6.1

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26.6โ†’26.6.1SecurityBug fix
๐Ÿ“… August 18, 2026๐Ÿ—‚ Browsers๐Ÿ“ฆ Safari โ†—๐Ÿ“œ Full changelog โ†—
โœฆ Editor's summary

Safari 26.6.1 is a security-focused update for macOS Sonoma and macOS Sequoia addressing multiple WebKit vulnerabilities. The fixes cover memory corruption, use-after-free, out-of-bounds access, sensitive-data disclosure, and numerous issues that could cause Safari or WebKit processes to crash when processing maliciously crafted web content.

โš  Security impact
  • Addresses multiple WebKit vulnerabilities involving memory corruption, use-after-free, out-of-bounds access, and improper input or state handling.
  • CVE-2026-65341 and CVE-2026-43794 address memory corruption when processing maliciously crafted web content.
  • CVE-2026-64715 and CVE-2026-64787 address use-after-free vulnerabilities that could cause unexpected process crashes or termination.
  • CVE-2026-64778 addresses a WebKit History vulnerability where visiting a maliciously crafted website could leak sensitive data.
  • Additional WebKit vulnerabilities could cause Safari or WebKit processes to crash when processing malicious web content.

What's new

Apple Safari 26.6.1 is a security-focused update addressing multiple vulnerabilities in WebKit for macOS Sonoma and macOS Sequoia.

What's new
  • Fixed multiple memory corruption vulnerabilities in WebKit.
  • Fixed use-after-free and out-of-bounds access issues when processing maliciously crafted web content.
  • Fixed a WebKit History issue that could allow a malicious website to leak sensitive data.
  • Fixed multiple vulnerabilities that could cause unexpected Safari or WebKit process crashes.
  • No new user-facing features are documented for this release.
Recommendation

Organizations running Safari 26.6 on macOS Sonoma or macOS Sequoia should prioritize deployment of Safari 26.6.1 due to the number and severity of the documented WebKit security vulnerabilities.

More from Safari
Safari 27FeatureBug fixPerformanceSep 14, 2026
Safari 26.6SecurityBug fixPerformanceJul 27, 2026
Safari 26.5.2SecurityBug fixJun 29, 2026
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Mozilla Firefox: Mozilla Firefox 156.0.1Sep 23, 2026

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