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TI-2026-31893 Aliases CVE-2026-43804GHSA-mj89-jhh3-3x9r

Uncontrolled resource consumption in Apple Safari

Priority LOW 29CWE-400Published · Updated

Key facts

Attack vector
Network
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-400.

Summary

This issue was addressed through improved state management. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, visionOS 26.6. Visiting a website may lead to an app denial-of-service.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00433 37th percentileScored 2026-11-07
Fix Partial Safari (Apple): 26.6iOS and iPadOS (Apple): 26.6+2 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 26.626.6Patch availableCNA
AppleiOS and iPadOSbefore 26.626.6Patch availableCNA
ApplemacOSbefore 26.626.6Patch availableCNA
ApplevisionOSbefore 26.626.6Patch availableCNA
  • Safari VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA
  • iOS and iPadOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA
  • macOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA
  • visionOS VendorApple Affected before 26.6 Fixed in 26.6 Patch available CNA

CPE configurations NVD · 5

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:visionos:*:*:*:*:*:*:*:*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:visionos:*:*:*:*:*:*:*:* Versions before 26.6 Vulnerable ·Apple

Remediation

  • Fix · CNA Safari (Apple) Fixed in 26.6
  • Fix · CNA iOS and iPadOS (Apple) Fixed in 26.6
  • Fix · CNA macOS (Apple) Fixed in 26.6
  • Fix · CNA visionOS (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 visionOS 26.6

    65 records Highest priority Priority MEDIUM 24 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-2026-46306 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 65 records →
  • Release ·

    Apple macOS 26.6

    32 records Highest priority Priority MEDIUM 14 MEDIUM, 18 LOW

    Other records, highest priority first

    • TI-2026-46261 Memory corruption in Apple iOS and iPadOSPriority MEDIUM 51
    • TI-2026-46284 Use after free in Apple iOS and iPadOSPriority MEDIUM 50
    • TI-2026-46281 Missing authorization in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 32 records →
Show 2 more groups
  • Release ·

    Apple iOS and iPadOS 26.6

    25 records Highest priority Priority MEDIUM 12 MEDIUM, 13 LOW

    Other records, highest priority first

    • 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
    • TI-2026-46268 Information disclosure in Apple iOS and iPadOSPriority MEDIUM 50
    Show all 25 records →
  • Release ·

    Apple Safari 26.6

    9 records Highest priority Priority MEDIUM 2 MEDIUM, 7 LOW

    Other records, highest priority first

    Show all 9 records →

Vendor assessments

Red Hat

Red Hat rating: Moderate. 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-2026-43804
  2. 2026-10-03 Alias added: GHSA-mj89-jhh3-3x9r
  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. 2026-10-29 Fix available: RHSA-2026:89822 · Red Hat
  6. 2026-10-29 Fix available: RHSA-2026:91631 · Red Hat
  7. 2026-10-29 Fix available: Red Hat Enterprise Linux AppStream E4S (v.9.2), Red Hat Enterprise Linux Server (v. 7 ELS), Red Hat Enterprise Linux Server Optional (v. 7 ELS) · Red Hat
  8. 2026-10-30 Fix available: RHSA-2026:92216 · Red Hat
  9. 2026-10-30 Fix available: RHSA-2026:92339 · Red Hat
  10. 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
  11. 2026-11-02 Fix available: RHSA-2026:93435 · Red Hat
  12. 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
  13. 2026-11-06 Fix available: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · Red Hat
  14. 2026-11-06 Fix available: RHSA-2026:95403 · Red Hat

References

Advisory 4

  • 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