Vulnerability · Published Sep 15, 2026 · Assigned by Chrome
CVE-2026-91727
High 8.1
In plain English
A high-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 1% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.1High
Exploit odds (30 days)0.1%top 98.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Incorrect reference resolution in Extensions in Google Chrome on on Mac prior to 153.0.8010.47 allowed a local attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via a local program. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 153.0.8010.52-1~deb12u1 | DEBIAN-CVE-2026-91727 |
| Debian:13 | chromium | 153.0.8010.47-2~deb13u1 | DEBIAN-CVE-2026-91727 |
| Debian:14 | chromium | 153.0.8010.47-1 | DEBIAN-CVE-2026-91727 |
Affected products (as reported)
Weakness: CWE-706 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H