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TI-2026-23101 Aliases CVE-2026-28917GHSA-88j2-27wc-pfg2

Improper input validation in Apple Safari

Priority LOW 20CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may lead to an unexpected process crash.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00296 22nd percentileScored 2026-11-07
Fix Fixed Safari (Apple): 26.5iOS and iPadOS (Apple): 18.7.9, 26.5+4 more products

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AppleSafaribefore 26.526.5Patch availableCNA
AppleiOS and iPadOSbefore 18.7.9; before 26.518.7.9, 26.5Patch availableCNA
ApplemacOSbefore 26.526.5Patch availableCNA
AppletvOSbefore 26.526.5Patch availableCNA
ApplevisionOSbefore 26.526.5Patch availableCNA
ApplewatchOSbefore 26.526.5Patch availableCNA
  • Safari VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 18.7.9; before 26.5 Fixed in 18.7.9, 26.5 Patch available CNA
  • macOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • tvOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • visionOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA
  • watchOS VendorApple Affected before 26.5 Fixed in 26.5 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 18.7.9; 26.0 to before 26.5VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 18.7.9; 26.0 to before 26.5VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*26.0 to before 26.5VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 26.5VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 26.5VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 26.5VulnerableApple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.9; 26.0 to before 26.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.9; 26.0 to before 26.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 26.0 to before 26.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 26.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 26.5 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 26.5 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.5
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.9, 26.5
  • Fix · CNA macOS (Apple) Fixed in 26.5
  • Fix · CNA tvOS (Apple) Fixed in 26.5
  • Fix · CNA visionOS (Apple) Fixed in 26.5
  • Fix · CNA watchOS (Apple) Fixed in 26.5

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apple visionOS 26.5

    46 records Highest priority Priority MEDIUM 7 MEDIUM, 39 LOW

    Other records, highest priority first

    • TI-2026-23134 Memory corruption in Apple SafariPriority MEDIUM 41
    • TI-2026-23121 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-23040 Memory corruption in Apple SafariPriority MEDIUM 41
    Show all 46 records →
  • Release ·

    Apple tvOS 26.5

    44 records Highest priority Priority MEDIUM 6 MEDIUM, 38 LOW

    Other records, highest priority first

    • TI-2026-23134 Memory corruption in Apple SafariPriority MEDIUM 41
    • TI-2026-23121 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-23040 Memory corruption in Apple SafariPriority MEDIUM 41
    Show all 44 records →
Show 4 more groups
  • Release ·

    Apple watchOS 26.5

    41 records Highest priority Priority MEDIUM 5 MEDIUM, 36 LOW

    Other records, highest priority first

    • TI-2026-23134 Memory corruption in Apple SafariPriority MEDIUM 41
    • TI-2026-23040 Memory corruption in Apple SafariPriority MEDIUM 41
    • TI-2026-23159 Type confusion in Apple iOS and iPadOSPriority MEDIUM 40
    Show all 41 records →
  • Release ·

    Apple iOS and iPadOS 18.7.9, 26.5

    35 records Highest priority Priority MEDIUM 6 MEDIUM, 29 LOW

    Other records, highest priority first

    • TI-2026-23134 Memory corruption in Apple SafariPriority MEDIUM 41
    • TI-2026-23121 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 41
    • TI-2026-23040 Memory corruption in Apple SafariPriority MEDIUM 41
    Show all 35 records →
  • Release ·

    Apple macOS 26.5

    27 records Highest priority Priority MEDIUM 3 MEDIUM, 24 LOW

    Other records, highest priority first

    Show all 27 records →
  • Release ·

    Apple Safari 26.5

    21 records Highest priority Priority MEDIUM 3 MEDIUM, 18 LOW

    Other records, highest priority first

    Show all 21 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28917
  2. 2026-10-03 Alias added: GHSA-88j2-27wc-pfg2

References

Advisory 6

Other 1

  • TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
  • TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-06854 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
See all 2382 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences