Read the docs
TI-2026-46253 Aliases CVE-2026-64718GHSA-88p9-qfjf-25c5

Use after free in Apple Safari

Priority LOW 24CWE-416Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 13 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-416 and the CVSS impact.

Summary

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.6, Safari 27, iOS 26.6 and iPadOS 26.6, iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOS 27, macOS Golden Gate 27, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, visionOS 27, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix Partial Safari (Apple): 26.6, 27iOS and iPadOS (Apple): 26.6, 26.7, 27+4 more productsRed Hat: 9 advisoriesRed Hat: 13 fixed, 1 without a fix

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 26.6; before 2726.6, 27Patch availableCNA
AppleiOS and iPadOSbefore 26.6; before 26.7; before 2726.6, 26.7, 27Patch availableCNA
ApplemacOSbefore 26.6; before 2726.6, 27Patch availableCNA
AppletvOSbefore 26.626.6Patch availableCNA
ApplevisionOSbefore 26.6; before 2726.6, 27Patch availableCNA
ApplewatchOSbefore 26.626.6Patch availableCNA
  • Safari VendorApple Affected before 26.6; before 27 Fixed in 26.6, 27 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 26.6; before 26.7; before 27 Fixed in 26.6, 26.7, 27 Patch available CNA
  • macOS VendorApple Affected before 26.6; before 27 Fixed in 26.6, 27 Patch available CNA
  • tvOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA
  • visionOS VendorApple Affected before 26.6; before 27 Fixed in 26.6, 27 Patch available CNA
  • watchOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*before 26.6VulnerableApple
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*before 26.6VulnerableApple
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*before 26.6VulnerableApple
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*26.0 to before 26.6VulnerableApple
cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*before 26.6VulnerableApple
cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*before 26.6VulnerableApple
cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*before 26.6VulnerableApple
  • cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 26.0 to before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple
  • cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.6, 27
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 26.6, 26.7, 27
  • Fix · CNA macOS (Apple) Fixed in 26.6, 27
  • Fix · CNA tvOS (Apple) Fixed in 26.6
  • Fix · CNA visionOS (Apple) Fixed in 26.6, 27
  • Fix · CNA watchOS (Apple) Fixed in 26.6

Red Hat 9 advisories

  • RHSA-2026:95403 Released 2026-11-05 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3-2.54.0-1.el8_4, webkit2gtk3-devel-2.54.0-1.el8_4, webkit2gtk3-jsc-2.54.0-1.el8_4 +1
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) webkit2gtk3-2.54.0-1.el8_4, webkit2gtk3-devel-2.54.0-1.el8_4, webkit2gtk3-jsc-2.54.0-1.el8_4 +1
  • RHSA-2026:93435 Released 2026-11-02 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream E4S (v.8.8) webkit2gtk3-2.54.0-1.el8_8, webkit2gtk3-devel-2.54.0-1.el8_8, webkit2gtk3-jsc-2.54.0-1.el8_8 +1
    • Red Hat Enterprise Linux AppStream TUS (v.8.8) webkit2gtk3-2.54.0-1.el8_8, webkit2gtk3-devel-2.54.0-1.el8_8, webkit2gtk3-jsc-2.54.0-1.el8_8 +1
  • RHSA-2026:92339 Released 2026-10-29 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3-2.54.0-1.el8_6, webkit2gtk3-devel-2.54.0-1.el8_6, webkit2gtk3-jsc-2.54.0-1.el8_6 +1
    • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) webkit2gtk3-2.54.0-1.el8_6, webkit2gtk3-devel-2.54.0-1.el8_6, webkit2gtk3-jsc-2.54.0-1.el8_6 +1
Show 6 more Red Hat advisories
  • RHSA-2026:92216 Released 2026-10-29 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) webkit2gtk3-2.54.0-1.el9_4, webkit2gtk3-devel-2.54.0-1.el9_4, webkit2gtk3-jsc-2.54.0-1.el9_4 +1
  • RHSA-2026:91631 Released 2026-10-28 · Red Hat rating Critical
    webkitgtk4 security update
    • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4-2.54.0-1.el7_9, webkitgtk4-devel-2.54.0-1.el7_9, webkitgtk4-jsc-2.54.0-1.el7_9 +1
    • Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-devel-2.54.0-1.el7_9, webkitgtk4-doc-2.54.0-1.el7_9, webkitgtk4-jsc-devel-2.54.0-1.el7_9
  • RHSA-2026:89822 Released 2026-10-27 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) webkit2gtk3-2.54.0-1.el9_2, webkit2gtk3-devel-2.54.0-1.el9_2, webkit2gtk3-jsc-2.54.0-1.el9_2 +1
  • RHSA-2026:89821 Released 2026-10-26 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) webkit2gtk3-2.54.0-1.el9_6, webkit2gtk3-devel-2.54.0-1.el9_6, webkit2gtk3-jsc-2.54.0-1.el9_6 +1
  • RHSA-2026:74084 Released 2026-09-30 · Red Hat rating Critical
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3-2.54.0-1.el8_10, webkit2gtk3-devel-2.54.0-1.el8_10, webkit2gtk3-jsc-2.54.0-1.el8_10 +1
  • RHSA-2026:69098 Released 2026-09-21 · Red Hat rating Important
    webkit2gtk3 security update
    • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3-2.54.0-1.el9_8, webkit2gtk3-devel-2.54.0-1.el9_8, webkit2gtk3-jsc-2.54.0-1.el9_8 +1

Fixed in the same release

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

  • Release ·

    Apple tvOS 26.6

    66 records Highest priority Priority MEDIUM 27 MEDIUM, 39 LOW

    Other records, highest priority first

    • TI-2026-46261 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 51
    • TI-2026-46307 Apple iOS and iPadOS: An app may be able to cause unexpected system terminationPriority MEDIUM 50
    • TI-2026-46306 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 66 records →
  • Release ·

    Apple watchOS 26.6

    64 records Highest priority Priority MEDIUM 23 MEDIUM, 41 LOW

    Other records, highest priority first

    • TI-2026-46261 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 51
    • TI-2026-46307 Apple iOS and iPadOS: An app may be able to cause unexpected system terminationPriority MEDIUM 50
    • TI-2026-46284 Use after free in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 64 records →

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2026:74084
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:69098
Red Hat Enterprise Linux AppStream AUS (v.8.4)Fixed RHSA-2026:95403
Red Hat Enterprise Linux AppStream AUS (v.8.6)Fixed RHSA-2026:92339
Red Hat Enterprise Linux AppStream E4S (v.8.8)Fixed RHSA-2026:93435
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:89822
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:92216
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:89821
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4)Fixed RHSA-2026:95403
Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6)Fixed RHSA-2026:92339
Red Hat Enterprise Linux AppStream TUS (v.8.8)Fixed RHSA-2026:93435
Red Hat Enterprise Linux Server (v. 7 ELS)Fixed RHSA-2026:91631
Red Hat Enterprise Linux Server Optional (v. 7 ELS)Fixed RHSA-2026:91631
Not affected: 1 product
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-64718
  2. 2026-10-03 Alias added: GHSA-88p9-qfjf-25c5
  3. 2026-10-26 Fix available: RHSA-2026:89821 · Red Hat
  4. 2026-10-26 Fix available: Red Hat Enterprise Linux AppStream EUS (v.9.6) · Red Hat
  5. 2026-10-27 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2) · Red Hat
  6. 2026-10-29 Fix available: Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · Red Hat
  7. 2026-10-29 Fix available: RHSA-2026:89822 · Red Hat
  8. 2026-10-29 Fix available: RHSA-2026:91631 · Red Hat
  9. 2026-10-30 Fix available: RHSA-2026:92216 · Red Hat
  10. 2026-10-30 Fix available: RHSA-2026:92339 · Red Hat
  11. 2026-10-30 Fix available: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.9.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · Red Hat
  12. 2026-11-02 Fix available: RHSA-2026:93435 · Red Hat
  13. 2026-11-02 Fix available: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · Red Hat
  14. 2026-11-05 Fix available: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · Red Hat
  15. 2026-11-06 Fix available: RHSA-2026:95403 · Red Hat

References

Advisory 6

Other 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