Vulnerability · Published Sep 15, 2026 · Assigned by Chrome
CVE-2026-91737
High 8.8
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 0.3% (higher than 27% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.3%top 72.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack tooling1Public PoC
Official description
Use after free in PDF in Google Chrome prior to 153.0.8010.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | 153.0.8010.52-1~deb12u1 | DEBIAN-CVE-2026-91737 |
| Debian:13 | chromium | 153.0.8010.47-2~deb13u1 | DEBIAN-CVE-2026-91737 |
| Debian:14 | chromium | 153.0.8010.47-1 | DEBIAN-CVE-2026-91737 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H