CVE-2026-20652
published 2026-02-11CVE-2026-20652: 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…
PriorityP340high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
0.61%
45.1th percentile
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. A remote attacker may be able to cause a denial-of-service.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_18.7.5_and_ipados | — | — |
| apple | ios_26.3_and_ipados | — | — |
| apple | ios_and_ipados | < 18.7.5 | 18.7.5 |
| apple | ios_and_ipados | < 26.3 | 26.3 |
| apple | ipados | < 18.7.5 | 18.7.5 |
| apple | ipados | >= 26.0 < 26.3 | 26.3 |
| apple | iphone_os | < 18.7.5 | 18.7.5 |
| apple | iphone_os | >= 26.0 < 26.3 | 26.3 |
| apple | macos | < 26.3 | 26.3 |
| apple | macos_tahoe | — | — |
| apple | safari | < 26.3 | 26.3 |
| apple | safari | — | — |
| apple | visionos | < 26.3 | 26.3 |
| apple | visionos | — | — |
| debian | webkit2gtk | < webkit2gtk 2.50.6-1~deb12u1 (bookworm) | webkit2gtk 2.50.6-1~deb12u1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.50.6-1~deb12u1 (bookworm) | webkit2gtk 2.50.6-1~deb12u1 (bookworm) |
| ubuntu | webkit2gtk | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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Ubuntu
WebKitGTK vulnerabilities
vendor_ubuntu·2026-05-06
CVE-2026-20644 WebKitGTK vulnerabilities
Title: WebKitGTK vulnerabilities
Summary: Several security issues were fixed in WebKitGTK.
Several security issues were discovered in the WebKitGTK Web and JavaScript
engines. If a user were tricked into viewing a malicious website, a remote
attacker could exploit a variety of issues related to web browser security,
including cross-site scripting attacks, denial of service attacks, and
arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.
Red Hat
webkitgtk: A remote attacker may be able to cause a denial-of-service
vendor_redhat·2026-03-18·CVSS 7.5
CVE-2026-20652 [HIGH] CWE-120 webkitgtk: A remote attacker may be able to cause a denial-of-service
webkitgtk: A remote attacker may be able to cause a denial-of-service
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. A remote attacker may be able to cause a denial-of-service.
A flaw was found in WebKitGTK. A remote attacker may be able to cause a denial-of-service due to improper memory handling.
Statement: This issue allows a remote attacker to cause a denial of service. Due to this reason, this flaw has been rated with an important severity.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
Package: we
Apple
CVE-2026-20652: macOS Tahoe 26.3
vendor_apple·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: macOS Tahoe 26.3
Apple Security Update: About the security content of macOS Tahoe 26.3
Product: macOS Tahoe
Version: 26.3
CVE: CVE-2026-20652
Component: WebKit
Impact: A remote attacker may be able to cause a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2026-20652: Safari 26.3
vendor_apple·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: Safari 26.3
Apple Security Update: About the security content of Safari 26.3
Product: Safari
Version: 26.3
CVE: CVE-2026-20652
Component: WebKit
Impact: A remote attacker may be able to cause a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2026-20652: visionOS 26.3
vendor_apple·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: visionOS 26.3
Apple Security Update: About the security content of visionOS 26.3
Product: visionOS
Version: 26.3
CVE: CVE-2026-20652
Component: WebKit
Impact: A remote attacker may be able to cause a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2026-20652: iOS 26.3 and iPadOS 26.3
vendor_apple·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: iOS 26.3 and iPadOS 26.3
Apple Security Update: About the security content of iOS 26.3 and iPadOS 26.3
Product: iOS 26.3 and iPadOS
Version: 26.3
CVE: CVE-2026-20652
Component: WebKit
Impact: A remote attacker may be able to cause a denial-of-service
Description: The issue was addressed with improved memory handling.
Apple
CVE-2026-20652: iOS 18.7.5 and iPadOS 18.7.5
vendor_apple·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: iOS 18.7.5 and iPadOS 18.7.5
Apple Security Update: About the security content of iOS 18.7.5 and iPadOS 18.7.5
Product: iOS 18.7.5 and iPadOS
Version: 18.7.5
CVE: CVE-2026-20652
Component: WebKit
Impact: A remote attacker may be able to cause a denial-of-service
Description: The issue was addressed with improved memory handling.
Debian
CVE-2026-20652: webkit2gtk - The issue was addressed with improved memory handling. This issue is fixed in Sa...
vendor_debian·2026·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: webkit2gtk - The issue was addressed with improved memory handling. This issue is fixed in Sa...
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. A remote attacker may be able to cause a denial-of-service.
Scope: local
bookworm: resolved (fixed in 2.50.6-1~deb12u1)
bullseye: open
forky: resolved (fixed in 2.50.6-1)
sid: resolved (fixed in 2.50.6-1)
trixie: resolved (fixed in 2.50.6-1~deb13u1)
VulDB
Apple Safari/macOS/visionOS/iOS/iPadOS up to 26.2 denial of service (Nessus ID 303253 / WID-SEC-2026-1201)
vuldb·2026-05-13
CVE-2026-20652 [LOW] Apple Safari/macOS/visionOS/iOS/iPadOS up to 26.2 denial of service (Nessus ID 303253 / WID-SEC-2026-1201)
A vulnerability described as problematic has been identified in Apple Safari, macOS, visionOS, iOS and iPadOS up to 26.2. This affects an unknown function. The manipulation results in denial of service.
This vulnerability is reported as CVE-2026-20652. The attack can be launched remotely. No exploit exists.
Upgrading the affected component is recommended.
GHSA
GHSA-jhp8-jfxv-5ggj: The issue was addressed with improved memory handling
ghsa_unreviewed·2026-02-12
CVE-2026-20652 [HIGH] CWE-400 GHSA-jhp8-jfxv-5ggj: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. A remote attacker may be able to cause a denial-of-service.
OSV
CVE-2026-20652: The issue was addressed with improved memory handling
osv·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: The issue was addressed with improved memory handling
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. A remote attacker may be able to cause a denial-of-service.
OSV
CVE-2026-20652: The issue was addressed with improved memory handling
osv·2026-02-11·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652: The issue was addressed with improved memory handling
The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. A remote attacker may be able to cause a denial-of-service.
No detection rules found.
No public exploits indexed.
Wiz
CVE-2026-20652 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-20652 :
Apple Safari vulnerability analysis and mitigation
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. A remote attacker may be able to cause a denial-of-service.
Source : NVD
## 7.5
Score
Published February 11, 2026
Severity HIGH
CNA Score 7.5
Affected Technologies
Apple Safari
macOS
Has Public Exploit No
Has CISA KEV Exploit No
CISA KEV Release Date N/A
CISA KEV Due Date N/A
Exploitation Probability Percentile (EPSS) 37.9
Exploitation Probability (EPSS) 0.2
Affected packages and libraries
webkit2gtk3-devel
webkit2gtk
Sources
Debian 11 Severity HIGH No Fix Added at: Mar 21, 2026
Debian 12, 13, 14 Severity HIGH Has Fix
Bugzilla
CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service [fedora-all]
bugzilla·2026-03-19·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service [fedora-all]
CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service [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.
Discussion:
FEDORA-2026-431948187d (webkitgtk-2.52.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-431948187d
---
FEDORA-2026-6502cee6c2 (webkitgtk-2.52.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6502cee6c2
---
FEDORA-2026-36594550b0 (webkitgtk-2.52.0-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/
Bugzilla
CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service
bugzilla·2026-03-18·CVSS 7.5
CVE-2026-20652 [HIGH] CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service
CVE-2026-20652 webkitgtk: A remote attacker may be able to cause a denial-of-service
The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. A remote attacker may be able to cause a denial-of-service.
Discussion:
This issue has been addressed in the following products:
Red Hat Enterprise Linux 9
Via RHSA-2026:9692 https://access.redhat.com/errata/RHSA-2026:9692
https://support.apple.com/en-us/126346https://support.apple.com/en-us/126347https://support.apple.com/en-us/126348https://support.apple.com/en-us/126353https://support.apple.com/en-us/126354https://access.redhat.com/errata/RHSA-2026:10702https://access.redhat.com/errata/RHSA-2026:11329https://access.redhat.com/errata/RHSA-2026:11814https://access.redhat.com/errata/RHSA-2026:13845https://access.redhat.com/errata/RHSA-2026:14659https://access.redhat.com/errata/RHSA-2026:16056https://access.redhat.com/errata/RHSA-2026:16695https://access.redhat.com/errata/RHSA-2026:19206https://access.redhat.com/errata/RHSA-2026:19535https://access.redhat.com/errata/RHSA-2026:22136https://access.redhat.com/errata/RHSA-2026:9692https://access.redhat.com/security/cve/CVE-2026-20652https://bugzilla.redhat.com/show_bug.cgi?id=2448793https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20652.json
2026-02-11
Published