CVE-2026-20676
published 2026-02-11CVE-2026-20676: This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A…
PriorityP426medium5.3CVSS 3.1
AVNACLPRNUINSUCLINAN
EPSS
0.22%
12.8th percentile
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | ios_26.3_and_ipados | — | — |
| apple | ios_and_ipados | < 26.3 | 26.3 |
| apple | ipados | < 26.3 | 26.3 |
| apple | iphone_os | < 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
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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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 website may be able to track users through Safari web extensions
vendor_redhat·2026-03-18·CVSS 5.3
CVE-2026-20676 [MEDIUM] CWE-201 webkitgtk: A website may be able to track users through Safari web extensions
webkitgtk: A website may be able to track users through Safari web extensions
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
A flaw was found in WebKitGTK. A malicious website can track users through web extensions due to improper state management.
Statement: To exploit this flaw, an attacker needs to trick a user into visiting a malicious website. Due to this reason, this flaw has been rated with a moderate severity.
Mitigation: Do not visit untrusted websites. Also, do not process or load untrusted web content with WebKitGTK.
In Red Hat Enterprise Linux 7, the following packages require WebKitGTK4: evolution-da
Apple
CVE-2026-20676: Safari 26.3
vendor_apple·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: Safari 26.3
Apple Security Update: About the security content of Safari 26.3
Product: Safari
Version: 26.3
CVE: CVE-2026-20676
Component: WebKit
Impact: A website may be able to track users through Safari web extensions
Description: This issue was addressed through improved state management.
Apple
CVE-2026-20676: macOS Tahoe 26.3
vendor_apple·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: macOS Tahoe 26.3
Apple Security Update: About the security content of macOS Tahoe 26.3
Product: macOS Tahoe
Version: 26.3
CVE: CVE-2026-20676
Component: WebKit
Impact: A website may be able to track users through Safari web extensions
Description: This issue was addressed through improved state management.
Apple
CVE-2026-20676: iOS 26.3 and iPadOS 26.3
vendor_apple·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: 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-2026-20676
Component: WebKit
Impact: A website may be able to track users through Safari web extensions
Description: This issue was addressed through improved state management.
Apple
CVE-2026-20676: visionOS 26.3
vendor_apple·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: visionOS 26.3
Apple Security Update: About the security content of visionOS 26.3
Product: visionOS
Version: 26.3
CVE: CVE-2026-20676
Component: WebKit
Impact: A website may be able to track users through Safari web extensions
Description: This issue was addressed through improved state management.
Debian
CVE-2026-20676: webkit2gtk - This issue was addressed through improved state management. This issue is fixed ...
vendor_debian·2026·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: webkit2gtk - This issue was addressed through improved state management. This issue is fixed ...
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
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)
GHSA
GHSA-cpw4-rfmm-h598: This issue was addressed through improved state management
ghsa_unreviewed·2026-02-12
CVE-2026-20676 [MEDIUM] CWE-400 GHSA-cpw4-rfmm-h598: This issue was addressed through improved state management
This issue was addressed through improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
OSV
CVE-2026-20676: This issue was addressed through improved state management
osv·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: This issue was addressed through improved state management
This issue was addressed through improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
OSV
CVE-2026-20676: This issue was addressed through improved state management
osv·2026-02-11·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676: This issue was addressed through improved state management
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
No detection rules found.
No public exploits indexed.
Wiz
CVE-2026-20676 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-20676 :
Apple Safari vulnerability analysis and mitigation
This issue was addressed through improved state management. This issue is fixed in Safari 26.3, iOS 26.3 and iPadOS 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
Source : NVD
## 5.3
Score
Published February 11, 2026
Severity MEDIUM
CNA Score 4.3
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) 10.6
Exploitation Probability (EPSS) N/A
Affected packages and libraries
WebKitGTK-4.1-lang
typelib-1_0-WebKit2WebExtension-4_1
Sources
Debian 11 Severity MEDIUM No Fix Added at: Mar 21, 2026
Debian 12, 13, 14 Severity
Bugzilla
CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions [fedora-all]
bugzilla·2026-03-19·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions [fedora-all]
CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions [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/
Bugzilla
CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions
bugzilla·2026-03-18·CVSS 5.3
CVE-2026-20676 [MEDIUM] CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions
CVE-2026-20676 webkitgtk: A website may be able to track users through Safari web extensions
This issue was addressed through improved state management. This issue is fixed in iOS 26.3 and iPadOS 26.3, Safari 26.3, macOS Tahoe 26.3, visionOS 26.3. A website may be able to track users through Safari web extensions.
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
2026-02-11
Published