Vulnerability · Published May 6, 2026 · Assigned by Chrome
CVE-2026-8003
Medium 5.4
In plain English
A medium-severity improper input validation in Chrome from Google. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.4Medium
Exploit odds (30 days)0.1%top 96.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.24 | qt6-qtwebengine | 6.11.1-r1 | ALPINE-CVE-2026-8003 |
| Debian:12 | chromium | 148.0.7778.96-1~deb12u1 | DEBIAN-CVE-2026-8003 |
| Debian:13 | chromium | 148.0.7778.96-1~deb13u1 | DEBIAN-CVE-2026-8003 |
| Debian:14 | chromium | 148.0.7778.96-1 | DEBIAN-CVE-2026-8003 |
Affected products (as reported)
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L