Vulnerability · Published Nov 3, 2026 · Assigned by Chrome
CVE-2026-121080
Medium 4.3
In plain English
A medium-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 19% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.3%top 81.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Use after free in Codecs in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | chromium | no fix listed | DEBIAN-CVE-2026-121080 |
| Debian:13 | chromium | no fix listed | DEBIAN-CVE-2026-121080 |
| Debian:14 | chromium | no fix listed | DEBIAN-CVE-2026-121080 |
Affected products (as reported)
Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N