CVE-2026-28947: Processing maliciously crafted web content may lead to an unexpected Safari crash in Apple Safari
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, 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 Safari crash.
AI Analysis
Technical Summary
CVE-2026-28947 is a use-after-free vulnerability (CWE-416) in Apple Safari and WebKitGTK+ that can lead to an unexpected crash when processing maliciously crafted web content. The vulnerability is fixed in Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5. Red Hat has released security updates for WebKitGTK+ on Red Hat Enterprise Linux 7 Extended Lifecycle Support to address this issue. The CVSS v3.1 base score is 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may cause Safari or WebKitGTK+-based browsers to crash unexpectedly, potentially leading to denial of service. The vulnerability affects confidentiality, integrity, and availability due to the use-after-free condition. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Safari 26.5 and corresponding OS updates (iOS, iPadOS, macOS Tahoe, tvOS, visionOS, watchOS 26.5). Users and administrators should update to these versions to remediate the vulnerability. For Red Hat Enterprise Linux 7 Extended Lifecycle Support, updated WebKitGTK+ packages have been released and should be applied as per Red Hat advisories. Patch status is confirmed by vendor advisories. No additional mitigation beyond applying the official patches is indicated.
CVE-2026-28947: Processing maliciously crafted web content may lead to an unexpected Safari crash in Apple Safari
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5, 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 Safari crash.
CVSS v3.1
Score 8.8high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-28947 is a use-after-free vulnerability (CWE-416) in Apple Safari and WebKitGTK+ that can lead to an unexpected crash when processing maliciously crafted web content. The vulnerability is fixed in Safari 26.5, iOS 26.5, iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, and watchOS 26.5. Red Hat has released security updates for WebKitGTK+ on Red Hat Enterprise Linux 7 Extended Lifecycle Support to address this issue. The CVSS v3.1 base score is 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), indicating a high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may cause Safari or WebKitGTK+-based browsers to crash unexpectedly, potentially leading to denial of service. The vulnerability affects confidentiality, integrity, and availability due to the use-after-free condition. There are no known exploits in the wild at this time.
Mitigation Recommendations
A fix is available in Safari 26.5 and corresponding OS updates (iOS, iPadOS, macOS Tahoe, tvOS, visionOS, watchOS 26.5). Users and administrators should update to these versions to remediate the vulnerability. For Red Hat Enterprise Linux 7 Extended Lifecycle Support, updated WebKitGTK+ packages have been released and should be applied as per Red Hat advisories. Patch status is confirmed by vendor advisories. No additional mitigation beyond applying the official patches is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.990Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-28947","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:27728","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:25918","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:27785","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:28114","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:27804","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:28148","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:28146","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:28147","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:25927","vendor":"Red Hat"}]
Threat ID: 6a028759cbff5d86108b644e
Added to database: 05/12/2026, 01:50:17 UTC
Last enriched: 07/15/2026, 08:48:21 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 100
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