Description
The issue was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.
Published: 2026-08-17
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: Denial of Service
Action: Patch
AI Analysis

Impact

The vulnerability involves improper input validation, designated as CWE‑20, in Safari’s rendering engine. Processing maliciously crafted web content may lead to an unexpected crash. Apple has addressed the issue by improving input validation in Safari 26.6.1 and the corresponding releases of iOS 18.7.10, iPadOS 18.7.10, iOS 26.6.1, iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27, which is restarted or patched, resulting in a denial of service for the user without leaking data or escalating privileges.

Affected Systems

Apple’s mobile operating systems iOS and iPadOS, macOS Tahoe, and visionOS are affected. The flaw was fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, and visionOS 27.

Risk and Exploitability

The CVSS score of 4.3 indicates low severity on availability. The EPSS score is less than 1% and the vulnerability is not listed in CISA’s KEV catalog, suggesting no publicly known exploits. Exoitation would require a user to load malicious content in Safari, making the attack vector user‑centric. While the likelihood of exploitation is presently low, promptly applying the update is recommended to maintain service continuity.

Generated by OpenCVE AI on September 21, 2026 at 06:30 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Install the latest updates—iOS 18.7.10+, iPadOS 18.7.10+, iOS 26.6.1+, iPadOS 26.6.1+, macOS Tahoe 26.6.2+, and visionOS 27+—which include the input‑validation fix.
  • Ensure Safari is updated to the newest version available for the OS; older Safari builds may still contain the bug.
  • If an OS upgrade cannot be performed immediately, restrict browsing to trusted sites, disable JavaScript, or use a secure web filter to limit exposure until the patch can be applied.

Generated by OpenCVE AI on September 21, 2026 at 06:30 UTC.

Tracking

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Advisories

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History

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash. The issue was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.
References

Thu, 27 Aug 2026 00:15:00 +0000

Type Values Removed Values Added
Title Safari Crash Due to Improper Input Validation webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash
References
Metrics threat_severity

None

 threat_severity

Important

Tue, 18 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Title Safari Crash Due to Improper Input Validation

Tue, 18 Aug 2026 18:45:00 +0000

Type Values Removed Values Added
Title Safari Crash Due to Improper Input Validation

Tue, 18 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash. The issue was addressed with improved input validation. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
First Time appeared Apple ipados
Apple iphone Os
CPEs cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*
Vendors & Products Apple ipados
Apple iphone Os
References

Tue, 18 Aug 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 17 Aug 2026 23:45:00 +0000

Type Values Removed Values Added
Title Safari Crash Due to Improper Input Validation
Weaknesses CWE-20

Mon, 17 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
First Time appeared Apple
Apple ios And Ipados
Apple macos
Vendors & Products Apple
Apple ios And Ipados
Apple macos

Mon, 17 Aug 2026 21:45:00 +0000

Type Values Removed Values Added
Description The issue was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.
References

Subscriptions

Apple Ios And Ipados Ipados Iphone Os Macos
cve-icon MITRE

Status: PUBLISHED

Assigner: apple

Published:

Updated: 2026-09-14T20:47:59.780Z

Reserved: 2026-07-20T18:11:03.397Z

Link: CVE-2026-64781

cve-icon Vulnrichment

Updated: 2026-08-18T13:25:21.591Z

cve-icon NVD

Status : Modified

Published: 2026-08-17T22:17:23.073

Modified: 2026-09-14T21:17:15.877

Link: CVE-2026-64781

cve-icon Redhat

Severity : Important

Publid Date: 2026-08-17T21:29:34Z

Links: CVE-2026-64781 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T06:45:10Z

Weaknesses
  • CWE-20

    Improper Input Validation