CVE-2026-20644
The issue was addressed with improved memory handling. This issue is fixed in Safari 26.3, iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. Processing maliciously crafted web content may lead to an unexpected process crash.
- Score
- CVSS 3.1 8.8 High
- Status
- Modified - product-security@apple.com
- Published
- 2026-02-11
- Last modified
- 2026-07-15
- Weaknesses
- CWE-119, CWE-120, CWE-416, CWE-787
Affected products
- Ios And Ipados (Apple)
- Ipados (Apple)
- Iphone Os (Apple)
- Macos (Apple)
- Safari (Apple)
- Visionos (Apple)
- Enterprise Linux (Redhat)
- Rhel Aus (Redhat)
- Rhel E4s (Redhat)
- Rhel Els (Redhat)
- Rhel Eus (Redhat)
- Rhel Eus Long Life (Redhat)
- Rhel Tus (Redhat)
References
- https://support.apple.com/en-us/126346
- https://support.apple.com/en-us/126347
- https://support.apple.com/en-us/126348
- https://support.apple.com/en-us/126353
- https://support.apple.com/en-us/126354
- https://access.redhat.com/errata/RHSA-2026:10702
- https://access.redhat.com/errata/RHSA-2026:11329
- https://access.redhat.com/errata/RHSA-2026:11814
- https://access.redhat.com/errata/RHSA-2026:13845
- https://access.redhat.com/errata/RHSA-2026:14659
- https://access.redhat.com/errata/RHSA-2026:16056
- https://access.redhat.com/errata/RHSA-2026:16695
- https://access.redhat.com/errata/RHSA-2026:19206
- https://access.redhat.com/errata/RHSA-2026:19535
- https://access.redhat.com/errata/RHSA-2026:22136
- https://access.redhat.com/errata/RHSA-2026:9692
- https://access.redhat.com/security/cve/CVE-2026-20644
- https://bugzilla.redhat.com/show_bug.cgi?id=2448792
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20644.json
