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Cryptography
CVE Vulnerabilities

CVE-2021-30884

Published: Aug 24, 2021 | Modified: Jun 17, 2026
CVSS 3.x
4.7
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
CVSS 2.x
4.3 MEDIUM
AV:N/AC:M/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
4.7 LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Ubuntu
MEDIUM
Vulnerability-free packages from our partners
Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2021-30884
CWEhttps://cwe.mitre.org/data/definitions/.html

The issue was resolved with additional restrictions on CSS compositing. This issue is fixed in tvOS 15, watchOS 8, iOS 15 and iPadOS 15. Visiting a maliciously crafted website may reveal a users browsing history.

Affected Software

NameVendorStart VersionEnd Version
IpadosApple*15.0 (excluding)
Iphone_osApple*15.0 (excluding)
MacosApple*12.0.1 (excluding)
TvosApple*15.0 (excluding)
WatchosApple*8.0 (excluding)
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRedHatwebkitgtk4-0:2.48.3-2.el7_9*
Red Hat Enterprise Linux 8RedHatwebkit2gtk3-0:2.34.6-1.el8*
Qtwebkit-opensource-srcUbuntubionic*
Qtwebkit-opensource-srcUbuntudevel*
Qtwebkit-opensource-srcUbuntuesm-apps/bionic*
Qtwebkit-opensource-srcUbuntuesm-apps/focal*
Qtwebkit-opensource-srcUbuntuesm-apps/jammy*
Qtwebkit-opensource-srcUbuntuesm-apps/noble*
Qtwebkit-opensource-srcUbuntuesm-infra-legacy/xenial*
Qtwebkit-opensource-srcUbuntuesm-infra/xenial*
Qtwebkit-opensource-srcUbuntufocal*
Qtwebkit-opensource-srcUbuntuhirsute*
Qtwebkit-opensource-srcUbuntuimpish*
Qtwebkit-opensource-srcUbuntujammy*
Qtwebkit-opensource-srcUbuntukinetic*
Qtwebkit-opensource-srcUbuntulunar*
Qtwebkit-opensource-srcUbuntumantic*
Qtwebkit-opensource-srcUbuntunoble*
Qtwebkit-opensource-srcUbuntutrusty*
Qtwebkit-opensource-srcUbuntuupstream*
Qtwebkit-opensource-srcUbuntuxenial*
Qtwebkit-sourceUbuntubionic*
Qtwebkit-sourceUbuntuesm-apps-legacy/xenial*
Qtwebkit-sourceUbuntuesm-apps/bionic*
Qtwebkit-sourceUbuntuesm-apps/xenial*
Qtwebkit-sourceUbuntutrusty*
Qtwebkit-sourceUbuntuxenial*
Webkit2gtkUbuntubionic*
Webkit2gtkUbuntudevel*
Webkit2gtkUbuntuesm-infra-legacy/xenial*
Webkit2gtkUbuntuesm-infra/bionic*
Webkit2gtkUbuntuesm-infra/focal*
Webkit2gtkUbuntuesm-infra/xenial*
Webkit2gtkUbuntufocal*
Webkit2gtkUbuntuhirsute*
Webkit2gtkUbuntuimpish*
Webkit2gtkUbuntujammy*
Webkit2gtkUbuntukinetic*
Webkit2gtkUbuntulunar*
Webkit2gtkUbuntumantic*
Webkit2gtkUbuntunoble*
Webkit2gtkUbuntuupstream*
Webkit2gtkUbuntuxenial*
WebkitgtkUbuntubionic*
WebkitgtkUbuntuesm-apps-legacy/xenial*
WebkitgtkUbuntuesm-apps/bionic*
WebkitgtkUbuntuesm-apps/xenial*
WebkitgtkUbuntutrusty*
WebkitgtkUbuntuxenial*
WpewebkitUbuntuesm-apps/focal*
WpewebkitUbuntuesm-apps/jammy*
WpewebkitUbuntufocal*
WpewebkitUbuntuhirsute*
WpewebkitUbuntuimpish*
WpewebkitUbuntujammy*

References

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