Vulnerability · Published Jun 17, 2026 · Assigned by Chrome
CVE-2026-12460
Medium 4.2
In plain English
A medium-severity improper access control 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 0.2% (higher than 4% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.2%top 95.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Insufficient policy enforcement in File System Access in Google Chrome prior to 149.0.7827.155 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 149.0.7827.155-1~deb12u1 | DEBIAN-CVE-2026-12460 |
| Debian:13 | chromium | 149.0.7827.155-1~deb13u1 | DEBIAN-CVE-2026-12460 |
| Debian:14 | chromium | 149.0.7827.155-1 | DEBIAN-CVE-2026-12460 |
Affected products (as reported)
Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:N