Vulnerability · Published Sep 9, 2026 · Assigned by Chrome
CVE-2026-87578
High 8.3
In plain English
A high-severity use-after-free 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 9% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.3High
Exploit odds (30 days)0.2%top 91.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Use after free in Receiver in Google Chrome prior to 153.0.8010.36 allowed an adjacent attacker to execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 153.0.8010.52-1~deb12u1 | DEBIAN-CVE-2026-87578 |
| Debian:13 | chromium | 153.0.8010.47-2~deb13u1 | DEBIAN-CVE-2026-87578 |
| Debian:14 | chromium | 153.0.8010.47-1 | DEBIAN-CVE-2026-87578 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H