Vulnerability · Published Jul 30, 2026 · Assigned by Chrome
CVE-2026-17864
High 7.8
In plain English
A high-severity privilege mismanagement 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 2% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.1%top 97.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Inappropriate implementation in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a local attacker to perform OS-level privilege escalation via a malicious file. (Chromium security severity: Medium)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 151.0.7922.71-1~deb12u1 | DEBIAN-CVE-2026-17864 |
| Debian:13 | chromium | 151.0.7922.71-1~deb13u1 | DEBIAN-CVE-2026-17864 |
| Debian:14 | chromium | 151.0.7922.71-1 | DEBIAN-CVE-2026-17864 |
Affected products (as reported)
Weakness: CWE-269 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H