CVE-2026-28857: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
AI Analysis
Technical Summary
CVE-2026-28857 is a vulnerability in Apple Safari caused by improper memory handling when processing maliciously crafted web content, which may lead to an unexpected process crash. The issue has been fixed in Safari 26.4, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4. The CVSS v3.1 base score is 6.5 (medium severity) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, but high impact on availability. The vulnerability is tracked under multiple CWEs related to memory safety errors (CWE-125, CWE-787, CWE-416, CWE-120). Red Hat has issued advisories and patches for related WebKitGTK+ packages addressing this and other similar vulnerabilities. No known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability may cause Safari to crash unexpectedly, resulting in denial of service for the user. There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploits have been reported.
Mitigation Recommendations
This vulnerability is fixed in Safari 26.4, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4. Users and administrators should apply these official updates to remediate the issue. For Linux environments using WebKitGTK+, apply the relevant Red Hat security updates as referenced in the vendor advisories. Patch status is confirmed as fixed in the stated versions.
CVE-2026-28857: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
Description
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visionOS 26.4. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS v3.1
Score 6.5medium
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-28857 is a vulnerability in Apple Safari caused by improper memory handling when processing maliciously crafted web content, which may lead to an unexpected process crash. The issue has been fixed in Safari 26.4, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4. The CVSS v3.1 base score is 6.5 (medium severity) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H, indicating network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, but high impact on availability. The vulnerability is tracked under multiple CWEs related to memory safety errors (CWE-125, CWE-787, CWE-416, CWE-120). Red Hat has issued advisories and patches for related WebKitGTK+ packages addressing this and other similar vulnerabilities. No known exploits in the wild have been reported.
Potential Impact
Successful exploitation of this vulnerability may cause Safari to crash unexpectedly, resulting in denial of service for the user. There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploits have been reported.
Mitigation Recommendations
This vulnerability is fixed in Safari 26.4, iOS 26.4, iPadOS 26.4, macOS Tahoe 26.4, and visionOS 26.4. Users and administrators should apply these official updates to remediate the issue. For Linux environments using WebKitGTK+, apply the relevant Red Hat security updates as referenced in the vendor advisories. Patch status is confirmed as fixed in the stated versions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.972Z
- Cvss Version
- null
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-28857","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:22136","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:10702","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:16056","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:13845","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:11814","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:19535","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:16695","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:14659","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:11329","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:9692","vendor":"Red Hat"},{"url":"https://access.redhat.com/errata/RHSA-2026:19206","vendor":"Red Hat"}]
Threat ID: 69c333dff4197a8e3baaeb3e
Added to database: 03/25/2026, 01:01:19 UTC
Last enriched: 07/15/2026, 13:28:27 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 177
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