Vulnerability · Published Nov 3, 2026 · Assigned by Chrome
CVE-2026-121207
Unrated
In plain English
A 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 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS )–Not rated
Exploit odds (30 days)0.2%top 89.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Uninitialized resource in Dawn in Google Chrome on on Mac prior to 157.0.8103.38 allowed a remote attacker to read memory outside 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-2026-121207 |
| Debian:13 | chromium | no fix listed | DEBIAN-CVE-2026-121207 |
| Debian:14 | chromium | no fix listed | DEBIAN-CVE-2026-121207 |
Affected products (as reported)
Weakness: CWE-908