CVE-2026-28946: 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, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
AI Analysis
Technical Summary
CVE-2026-28946 is a use-after-free vulnerability (CWE-416) in Apple Safari's web content processing, which can lead to an unexpected crash of the browser. The vulnerability was fixed by improving memory management in Safari 26.5 and macOS Tahoe 26.5. Red Hat's advisories indicate that the issue also affects WebKitGTK+ packages used in Red Hat Enterprise Linux 7 Extended Lifecycle Support, and patches have been released to mitigate the vulnerability. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), reflecting a network attack vector with low complexity, no privileges required, user interaction needed, and impact limited to availability (crash).
Potential Impact
Successful exploitation of this vulnerability can cause Safari to crash unexpectedly, resulting in denial of service (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are currently reported in the wild.
Mitigation Recommendations
A fix is available in Safari version 26.5 and macOS Tahoe 26.5. Users should update to these versions to remediate the vulnerability. For Red Hat Enterprise Linux 7 Extended Lifecycle Support users, updated WebKitGTK+ packages have been released and should be applied promptly. Patch status is confirmed by vendor advisories. No additional mitigation steps are indicated by the vendor.
CVE-2026-28946: 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, macOS Tahoe 26.5. Processing maliciously crafted web content may lead to an unexpected Safari crash.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-28946 is a use-after-free vulnerability (CWE-416) in Apple Safari's web content processing, which can lead to an unexpected crash of the browser. The vulnerability was fixed by improving memory management in Safari 26.5 and macOS Tahoe 26.5. Red Hat's advisories indicate that the issue also affects WebKitGTK+ packages used in Red Hat Enterprise Linux 7 Extended Lifecycle Support, and patches have been released to mitigate the vulnerability. The CVSS 3.1 base score is 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H), reflecting a network attack vector with low complexity, no privileges required, user interaction needed, and impact limited to availability (crash).
Potential Impact
Successful exploitation of this vulnerability can cause Safari to crash unexpectedly, resulting in denial of service (availability impact). There is no indication of confidentiality or integrity impact. No known exploits are currently reported in the wild.
Mitigation Recommendations
A fix is available in Safari version 26.5 and macOS Tahoe 26.5. Users should update to these versions to remediate the vulnerability. For Red Hat Enterprise Linux 7 Extended Lifecycle Support users, updated WebKitGTK+ packages have been released and should be applied promptly. Patch status is confirmed by vendor advisories. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.989Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-28946","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: 6a028755cbff5d86108b595d
Added to database: 05/12/2026, 01:50:13 UTC
Last enriched: 07/15/2026, 08:48:08 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 90
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