CVE-2026-28883
published 2026-05-11CVE-2026-28883: 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…
PriorityP343high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
0.40%
32.1th percentile
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 process crash.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_and_ipados | < 26.5 | 26.5 |
| apple | ipados | < 26.5 | 26.5 |
| apple | iphone_os | < 26.5 | 26.5 |
| apple | macos | < 26.5 | 26.5 |
| apple | macos | >= 26.0 < 26.5 | 26.5 |
| apple | safari | < 26.5 | 26.5 |
| apple | tvos | < 26.5 | 26.5 |
| apple | visionos | < 26.5 | 26.5 |
| apple | watchos | < 26.5 | 26.5 |
| webkitgtk | webkitgtk | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vendor_redhat7.5HIGH
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VulDB
Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS up to 26.4 Web use after free (Nessus ID 318333 / WID-SEC-2026-1543)
vuldb·2026-07-02·CVSS 7.5
CVE-2026-28883 [HIGH] Apple iOS/iPadOS/macOS/tvOS/visionOS/watchOS up to 26.4 Web use after free (Nessus ID 318333 / WID-SEC-2026-1543)
A vulnerability was found in Apple iOS, iPadOS, macOS, tvOS, visionOS and watchOS up to 26.4. It has been rated as critical. Affected by this issue is some unknown functionality of the component Web Handler. This manipulation causes use after free.
This vulnerability appears as CVE-2026-28883. The attack may be initiated remotely. There is no available exploit.
Upgrading the affected component is advised.
GHSA
GHSA-hwcr-g58m-97q5: A use-after-free issue was addressed with improved memory management
ghsa_unreviewed·2026-05-11
CVE-2026-28883 [HIGH] CWE-416 GHSA-hwcr-g58m-97q5: A use-after-free issue was addressed with improved memory management
A use-after-free issue was addressed with improved memory management. This issue is fixed in 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 process crash.
Red Hat
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
vendor_redhat·2026-06-02·CVSS 7.5
CVE-2026-28883 [HIGH] CWE-416 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
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 process crash.
A flaw was found in WebKitGTK. Processing malicious web content can cause a use-after-free issue due to improper memory management and result in an unexpected process crash.
Statement: To exploit this issue, an attacker needs to trick a user into processing or loading malicious web content. Due to this reason, this flaw has been rated with an important severity.
Additionally, this issue can cause an unexpected process crash b
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-28883 [HIGH] CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash
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 process crash.
Bugzilla
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [fedora-all]
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-28883 [HIGH] CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [fedora-all]
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Bugzilla
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [epel-all]
bugzilla·2026-06-02·CVSS 7.5
CVE-2026-28883 [HIGH] CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [epel-all]
CVE-2026-28883 webkitgtk: Processing maliciously crafted web content may lead to an unexpected process crash [epel-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
Sans Isc
Apple Patches Everything, (Mon, May 11th)
blogs_sans_isc·2026-05-11·CVSS 5.5
CVE-2025-43524 [MEDIUM] Apple Patches Everything, (Mon, May 11th)
Apple Patches Everything
Published: 2026-05-11. Last Updated: 2026-05-11 22:19:13 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
Apple today released its typical feature update across it's operating systems (iOS, iPadOS, macOS, tvOS, watchOS, vision OS). With this update, Apple patched 84 different vulnerabilities. Updates are available for the "26" series of operating systems, as well as for the previous "18" version of iOS/iPadOS, and two versions back for macOS (version 14 and 15).
None of the vulnerabilities has been exploited. The number of addressed vulnerabilities is about average compared to similar Apple updates.
Figure: Number of Vulnerabilities patched for each security update. Last one in red at the end.
iOS 26.5 and iPadOS 26.5 iOS 18.7.9 and iPadOS 18.7.9 macOS Tahoe
https://support.apple.com/en-us/127110https://support.apple.com/en-us/127115https://support.apple.com/en-us/127118https://support.apple.com/en-us/127119https://support.apple.com/en-us/127120https://support.apple.com/en-us/127121https://access.redhat.com/errata/RHSA-2026:25918https://access.redhat.com/errata/RHSA-2026:25927https://access.redhat.com/errata/RHSA-2026:27728https://access.redhat.com/errata/RHSA-2026:27785https://access.redhat.com/errata/RHSA-2026:27804https://access.redhat.com/errata/RHSA-2026:28114https://access.redhat.com/errata/RHSA-2026:28146https://access.redhat.com/errata/RHSA-2026:28147https://access.redhat.com/errata/RHSA-2026:28148https://access.redhat.com/security/cve/CVE-2026-28883https://bugzilla.redhat.com/show_bug.cgi?id=2483956https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28883.json
2026-05-11
Published