CVE-2026-5882
published 2026-04-08CVE-2026-5882: Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium…
PriorityP419medium4.3CVSS 3.1
AVNACLPRNUIRSUCNILAN
EPSS
0.19%
9.0th percentile
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
Affected
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | chromium | < chromium 147.0.7727.55-1 (sid) | chromium 147.0.7727.55-1 (sid) |
| chrome | < 147.0.7727.55 | 147.0.7727.55 | |
| chrome | >= 147.0.7727.55 < 147.0.7727.55 | 147.0.7727.55 | |
| chrome_chrome | — | — |
CVSS provenance
nvdv3.14.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
osv4.3MEDIUM
vendor_debian4.3MEDIUM
vendor_redhat4.3MEDIUM
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VulDB
Google Chrome up to 146.0.7680.178 Fullscreen ui layer (ID 480993 / WID-SEC-2026-1030)
vuldb·2026-04-11·CVSS 4.3
CVE-2026-5882 [MEDIUM] Google Chrome up to 146.0.7680.178 Fullscreen ui layer (ID 480993 / WID-SEC-2026-1030)
A vulnerability marked as problematic has been reported in Google Chrome. Affected by this issue is some unknown functionality of the component Fullscreen. The manipulation leads to improper restriction of rendered ui layers.
This vulnerability is listed as CVE-2026-5882. The attack may be initiated remotely. There is no available exploit.
It is suggested to upgrade the affected component.
GHSA
GHSA-h6cm-pcwj-hj57: Incorrect security UI in Fullscreen in Google Chrome prior to 147
ghsa_unreviewed·2026-04-09
CVE-2026-5882 GHSA-h6cm-pcwj-hj57: Incorrect security UI in Fullscreen in Google Chrome prior to 147
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
OSV
CVE-2026-5882: Incorrect security UI in Fullscreen in Google Chrome prior to 147
osv·2026-04-08·CVSS 4.3
CVE-2026-5882 [MEDIUM] CVE-2026-5882: Incorrect security UI in Fullscreen in Google Chrome prior to 147
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
Red Hat
chromium-browser: Incorrect security UI in Fullscreen
vendor_redhat·2026-04-07·CVSS 4.3
CVE-2026-5882 [MEDIUM] CWE-1021 chromium-browser: Incorrect security UI in Fullscreen
chromium-browser: Incorrect security UI in Fullscreen
An incorrect security ui flaw was found in the Fullscreen component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=480993682
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Chrome
Stable Channel Update for Desktop: CVE-2026-5882
vendor_chrome·2026-04-07·CVSS 4.3
CVE-2026-5882 [MEDIUM] Stable Channel Update for Desktop: CVE-2026-5882
Stable Channel Update for Desktop
CVE-2026-5882: Incorrect security UI in Fullscreen. Reported by Anonymous on 2026-02-02 [TBD][ 482958590 ] Medium CVE-2026-5883: Use after free in Media
Reported by sherkito on 2026-02-09 [TBD][ 484547633 ] Medium CVE-2026-5884: Insufficient validation of untrusted input in Media
Severity: medium
Debian
CVE-2026-5882: chromium - Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allo...
vendor_debian·2026·CVSS 4.3
CVE-2026-5882 [MEDIUM] CVE-2026-5882: chromium - Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allo...
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
Scope: local
bookworm: open
bullseye: open
forky: open
sid: resolved (fixed in 147.0.7727.55-1)
trixie: open
No detection rules found.
No public exploits indexed.
Sans Isc
Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
blogs_sans_isc·2026-04-14·CVSS 8.8
[HIGH] Microsoft Patch Tuesday April 2026., (Tue, Apr 14th)
Microsoft Patch Tuesday April 2026.
Published: 2026-04-14. Last Updated: 2026-04-14 17:46:09 UTC
by Johannes Ullrich (Version: 1)
0 comment(s)
This month's Microsoft Patch Tuesday looks like a record one, but let's look at it a bit closer to understand what is happening
The update patches a total of 243 vulnerabilities. However, 78 of them are Chromium issues affecting Microsoft Edge. Patches for Edge were released earlier. This leaves 165 vulnerabilities that are not Edge-related. Of these, 8 are rated critical, and 154 are important. One vulnerability has already been exploited, and another was made public before today but has not yet been seen in the wild.
Noteworthy Vulnerabilities:
CVE-2026-33827 (Windows TCP/IP Remote Code Execution Vulnerability): As a packet nerd, I love thes
Wiz
CVE-2026-5882 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz·CVSS 8.8
CVE-2026-5882 [HIGH] CVE-2026-5882 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2026-5882 :
Google Chrome vulnerability analysis and mitigation
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
Source : NVD
Published April 8, 2026
CNA Score N/A
Affected Technologies
Google Chrome
Chromium
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) 10.4
Exploitation Probability (EPSS) N/A
Affected packages and libraries
chromium
cpe:2.3:a:google:chrome
Sources
NVD
Debian 11, 12, 13, 14 No Fix Added at: Apr 09, 2026
Echo No Fix Added at: Apr 09, 2026
Linux Has Fix Added at: Apr 09, 2026
Windows Has Fix Added at: Apr 09, 2026
##
Bugzilla
CVE-2026-5882 chromium-browser: Incorrect security UI in Fullscreen
bugzilla·2026-04-08·CVSS 4.3
CVE-2026-5882 [MEDIUM] CVE-2026-5882 chromium-browser: Incorrect security UI in Fullscreen
CVE-2026-5882 chromium-browser: Incorrect security UI in Fullscreen
Incorrect security UI in Fullscreen in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to perform UI spoofing via a crafted HTML page. (Chromium security severity: Medium)
2026-04-08
Published