CVE-2026-8003
published 2026-05-06CVE-2026-8003: Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via malicious…
PriorityP426medium5.4CVSS 3.1
AVNACLPRNUIRSUCLINAL
EPSS
0.15%
4.4th percentile
Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via malicious network traffic. (Chromium security severity: Low)
Affected
3 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chrome | < 148.0.7778.96 | 148.0.7778.96 | |
| chrome | >= 148.0.7778.96 < 148.0.7778.96 | 148.0.7778.96 | |
| chrome_desktop | — | — |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
vendor_redhat5.4MEDIUM
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GHSA
GHSA-4w6j-cm8p-vcvv: Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148
ghsa_unreviewed·2026-05-06
CVE-2026-8003 [MEDIUM] CWE-20 GHSA-4w6j-cm8p-vcvv: Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148
Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via malicious network traffic. (Chromium security severity: Low)
VulDB
Google Chrome up to 147.0.7727.138 TabGroups ui layer (ID 495985)
vuldb·2026-05-06·CVSS 5.4
CVE-2026-8003 [MEDIUM] Google Chrome up to 147.0.7727.138 TabGroups ui layer (ID 495985)
A vulnerability was found in Google Chrome. It has been classified as problematic. This impacts an unknown function of the component TabGroups. The manipulation leads to improper restriction of rendered ui layers.
This vulnerability is uniquely identified as CVE-2026-8003. The attack is possible to be carried out remotely. No exploit exists.
Upgrading the affected component is recommended.
Chrome
Stable Channel Update for Desktop: CVE-2026-8003
vendor_chrome·2026-05-05·CVSS 5.4
CVE-2026-8003 [LOW] Stable Channel Update for Desktop: CVE-2026-8003
Stable Channel Update for Desktop
CVE-2026-8003: Insufficient validation of untrusted input in TabGroups. Reported by Google on 2026-03-25 [N/A][ 496189510 ] Low CVE-2026-8004: Insufficient policy enforcement in DevTools
Reported by Google on 2026-03-25 [N/A][ 496298665 ] Low CVE-2026-8005: Insufficient validation of untrusted input in Cast
Severity: low
Red Hat
chromium-browser: Insufficient validation of untrusted input in TabGroups
vendor_redhat·2026-05-05·CVSS 5.4
CVE-2026-8003 [MEDIUM] CWE-1286 chromium-browser: Insufficient validation of untrusted input in TabGroups
chromium-browser: Insufficient validation of untrusted input in TabGroups
An insufficient validation of untrusted input flaw was found in the TabGroups component of the Chromium browser.
Upstream bug(s):
https://code.google.com/p/chromium/issues/detail?id=495985532
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
No detection rules found.
No public exploits indexed.
Rapid7
Patch Tuesday - May 2026
blogs_rapid7·2026-05-13·CVSS 10.0
CVE-2026-41089 [CRITICAL] Patch Tuesday - May 2026
Microsoft is publishing 137 vulnerabilities on May 2026 Patch Tuesday . Microsoft is not aware of exploitation in the wild or public disclosure for any of these vulnerabilities. So far this month, Microsoft has provided patches to address 133 browser vulnerabilities, which are not included in the Patch Tuesday count above.
## Windows Netlogon: critical RCE
Anyone responsible for securing a domain controller should prioritize remediation of CVE-2026-41089 , which is a critical stack-based buffer overflow in Windows Netlogon with a CVSS v3 base score of 9.8. Exploitation leads to execution in the context of the Netlogon service, so that’s SYSTEM privileges on the domain controller. For most pentesters, that’s the point at which the customer report more or less writes itself. No privileges
Bugzilla
CVE-2026-8003 chromium-browser: Insufficient validation of untrusted input in TabGroups
bugzilla·2026-05-06·CVSS 5.4
CVE-2026-8003 [MEDIUM] CVE-2026-8003 chromium-browser: Insufficient validation of untrusted input in TabGroups
CVE-2026-8003 chromium-browser: Insufficient validation of untrusted input in TabGroups
Insufficient validation of untrusted input in TabGroups in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to perform UI spoofing via malicious network traffic. (Chromium security severity: Low)
2026-05-06
Published