webkitgtk: webkitgtk: Maliciously crafted web content may lead to memory corruption
Published Jun 29, 2026
8.8
HIGHCVSS 3.1
EPSS 0.40%
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to memory corruption.
Affected products
-
- Version 0StatusaffectedConstraints<26.5.2
- Version
-
- Version 0StatusaffectedConstraints<18.7.10
- Version 0StatusaffectedConstraints<26.5.2
- Version
-
- Version 0StatusaffectedConstraints<26.5.2
- Version
-
- Version 0StatusaffectedConstraints<26.6
- Version
-
- Version 0StatusaffectedConstraints<26.6
- Version
-
- Version 0StatusaffectedConstraints<26.6
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apple | Safari | n/a |
| |||||||||
| Apple | iOS and iPadOS | n/a |
| |||||||||
| Apple | macOS | n/a |
| |||||||||
| Apple | tvOS | n/a |
| |||||||||
| Apple | visionOS | n/a |
| |||||||||
| Apple | watchOS | n/a |
|
No data.
Red Hat Enterprise Linux 7 Extended Lifecycle Support
webkitgtk4-0:2.52.5-1.el7_9
Fixed · RHSA-2026:58564
Red Hat Enterprise Linux 8
webkit2gtk3-0:2.52.5-1.el8_10
Fixed · RHSA-2026:42088
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
webkit2gtk3-0:2.52.5-1.el8_4
Fixed · RHSA-2026:57348
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On
webkit2gtk3-0:2.52.5-1.el8_4
Fixed · RHSA-2026:57348
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
webkit2gtk3-0:2.52.5-1.el8_6
Fixed · RHSA-2026:59325
Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On
webkit2gtk3-0:2.52.5-1.el8_6
Fixed · RHSA-2026:59325
Red Hat Enterprise Linux 8.8 Telecommunications Update Service
webkit2gtk3-0:2.52.5-1.el8_8
Fixed · RHSA-2026:59326
Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
webkit2gtk3-0:2.52.5-1.el8_8
Fixed · RHSA-2026:59326
Red Hat Enterprise Linux 9
webkit2gtk3-0:2.52.5-1.el9_8
Fixed · RHSA-2026:42062
Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
webkit2gtk3-0:2.52.5-1.el9_2
Fixed · RHSA-2026:58550
Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions
webkit2gtk3-0:2.52.5-1.el9_4
Fixed · RHSA-2026:54634
Red Hat Enterprise Linux 9.6 Extended Update Support
webkit2gtk3-0:2.52.5-1.el9_6
Fixed · RHSA-2026:54572
Red Hat Enterprise Linux 6
pywebkitgtk
Out of support scope
Red Hat Enterprise Linux 6
webkitgtk
Out of support scope
Red Hat Enterprise Linux 7
webkitgtk3
Out of support scope
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 Extended Lifecycle Support | webkitgtk4-0:2.52.5-1.el7_9 | Fixed | RHSA-2026:58564 |
| Red Hat Enterprise Linux 8 | webkit2gtk3-0:2.52.5-1.el8_10 | Fixed | RHSA-2026:42088 |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | webkit2gtk3-0:2.52.5-1.el8_4 | Fixed | RHSA-2026:57348 |
| Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | webkit2gtk3-0:2.52.5-1.el8_4 | Fixed | RHSA-2026:57348 |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | webkit2gtk3-0:2.52.5-1.el8_6 | Fixed | RHSA-2026:59325 |
| Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | webkit2gtk3-0:2.52.5-1.el8_6 | Fixed | RHSA-2026:59325 |
| Red Hat Enterprise Linux 8.8 Telecommunications Update Service | webkit2gtk3-0:2.52.5-1.el8_8 | Fixed | RHSA-2026:59326 |
| Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | webkit2gtk3-0:2.52.5-1.el8_8 | Fixed | RHSA-2026:59326 |
| Red Hat Enterprise Linux 9 | webkit2gtk3-0:2.52.5-1.el9_8 | Fixed | RHSA-2026:42062 |
| Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | webkit2gtk3-0:2.52.5-1.el9_2 | Fixed | RHSA-2026:58550 |
| Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | webkit2gtk3-0:2.52.5-1.el9_4 | Fixed | RHSA-2026:54634 |
| Red Hat Enterprise Linux 9.6 Extended Update Support | webkit2gtk3-0:2.52.5-1.el9_6 | Fixed | RHSA-2026:54572 |
| Red Hat Enterprise Linux 6 | pywebkitgtk | Out of support scope | n/a |
| Red Hat Enterprise Linux 6 | webkitgtk | Out of support scope | n/a |
| Red Hat Enterprise Linux 7 | webkitgtk3 | Out of support scope | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (13)
- https://access.redhat.com/security/cve/CVE-2026-43731 Vendor Advisory
- https://bugs.webkit.org/show_bug.cgi?id=314115
- https://bugzilla.redhat.com/show_bug.cgi?id=2500535 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2026-43731
- https://support.apple.com/en-us/127594 Vendor Advisory
- https://support.apple.com/en-us/127595 Vendor Advisory
- https://support.apple.com/en-us/127685 Vendor Advisory
- https://support.apple.com/en-us/128068
- https://support.apple.com/en-us/128069
- https://support.apple.com/en-us/128070
- https://support.apple.com/en-us/148287
- https://webkitgtk.org/security/WSA-2026-0004.html
- https://www.cve.org/CVERecord?id=CVE-2026-43731
Change history (0)
No recorded changes yet.