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TI-2026-23050 Aliases CVE-2026-28861GHSA-mf24-ggcw-q27g

Cross-site scripting in Apple Safari

Priority LOW 20CWE-79Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

A logic issue was addressed with improved state management. This issue is fixed in Safari 26.4, iOS 18.7.7 and iPadOS 18.7.7, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. A malicious website may be able to access script message handlers intended for other origins.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00322 25th percentileScored 2026-11-07
Fix Fixed Safari (Apple): 26.4iOS and iPadOS (Apple): 18.7.7, 26.4+2 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 26.426.4Patch availableCNA
AppleiOS and iPadOSbefore 18.7.7; before 26.418.7.7, 26.4Patch availableCNA
ApplemacOSbefore 26.426.4Patch availableCNA
ApplevisionOSbefore 26.426.4Patch availableCNA
  • Safari VendorApple Affected before 26.4 Fixed in 26.4 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 18.7.7; before 26.4 Fixed in 18.7.7, 26.4 Patch available CNA
  • macOS VendorApple Affected before 26.4 Fixed in 26.4 Patch available CNA
  • visionOS VendorApple Affected before 26.4 Fixed in 26.4 Patch available CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 26.4VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 18.7.7; 26.0 to before 26.4VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 18.7.7; 26.0 to before 26.4VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*before 26.4VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 26.4VulnerableApple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 26.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 18.7.7; 26.0 to before 26.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 18.7.7; 26.0 to before 26.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions before 26.4 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 26.4 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.4
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 18.7.7, 26.4
  • Fix · CNA macOS (Apple) Fixed in 26.4
  • Fix · CNA visionOS (Apple) Fixed in 26.4

Fixed in the same release

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

  • Release ·

    Apple visionOS 26.4

    27 records Highest priority Priority MEDIUM 1 MEDIUM, 26 LOW

    Other records, highest priority first

    • TI-2026-16744 Path traversal in Apple iOS and iPadOSPriority MEDIUM 42
    • TI-2026-23066 Information disclosure in Apple iOS and iPadOSPriority LOW 37
    • TI-2026-23068 Improper access control in Apple iOS and iPadOSPriority LOW 36
    Show all 27 records →
  • Release ·

    Apple macOS 26.4

    23 records Highest priority Priority MEDIUM 1 MEDIUM, 22 LOW

    Other records, highest priority first

    • TI-2026-16688 Apple macOS: A user may be able to elevate privilegesPriority MEDIUM 40
    • TI-2026-23036 Heap-based buffer overflow in Apple macOSPriority LOW 39
    • TI-2026-23031 Improper access control in Apple macOSPriority LOW 39
    Show all 23 records →
Show 2 more groups
  • Release ·

    Apple iOS and iPadOS 18.7.7, 26.4

    16 records Highest priority Priority LOW 16 LOW

    Other records, highest priority first

    • TI-2026-23066 Information disclosure in Apple iOS and iPadOSPriority LOW 37
    • TI-2026-23068 Improper access control in Apple iOS and iPadOSPriority LOW 36
    • TI-2026-16721 Protection mechanism failure in Apple SafariPriority LOW 36
    Show all 16 records →
  • Release ·

    Apple Safari 26.4

    7 records Highest priority Priority LOW 7 LOW

    Other records, highest priority first

    • TI-2026-16721 Protection mechanism failure in Apple SafariPriority LOW 36
    • TI-2026-23046 Out-of-bounds read in Apple SafariPriority LOW 30
    • TI-2026-23048 Out-of-bounds read in Apple SafariPriority LOW 21
    Show all 7 records →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

Not affected: 4 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-28861
  2. 2026-10-03 Alias added: GHSA-mf24-ggcw-q27g

References

Advisory 5

  • 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