Vulnerability · Published Oct 6, 2026 · Assigned by Chrome
CVE-2026-106405
Medium 6.0
In plain English
A medium-severity security flaw 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 0% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.0Medium
Exploit odds (30 days)<0.1%top 100.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Race condition in CustomTabs in Google Chrome on on Android prior to 155.0.8059.39 allowed a local attacker to bypass web origin policy via a co-installed app. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 155.0.8059.39-1~deb12u1 | DEBIAN-CVE-2026-106405 |
| Debian:13 | chromium | 155.0.8059.39-1~deb13u1 | DEBIAN-CVE-2026-106405 |
| Debian:14 | chromium | 155.0.8059.39-1 | DEBIAN-CVE-2026-106405 |
Affected products (as reported)
Weakness: CWE-367 · Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N