CVE-2026-6303 — Use After Free in Google Chrome

CWE-416 — Use After FreeCWE-825 — Expired Pointer Dereference6 documents6 sources
Severity
8.8HIGHCNA
No vector
EPSS
0.1%
top 76.43%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Google Chrome
Timeline
PublishedApr 15

Description

Use after free in Codecs in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

Affected Packages1 packages

▶CVEListV5google/chrome147.0.7727.101 — 147.0.7727.101

🔴Vulnerability Details

2
GHSA
GHSA-wrr6-q4vw-3g77: Use after free in Codecs in Google Chrome prior to 147↗2026-04-15
▶
CVEList
CVE-2026-6303: Use after free in Codecs in Google Chrome prior to 147↗2026-04-15
▶

📋Vendor Advisories

2
Chrome
Stable Channel Update for Desktop: CVE-2026-6303↗2026-04-15
▶
Red Hat
chromium-browser: Use after free in Codecs↗2026-04-15
▶

💬Community

1
Bugzilla
CVE-2026-6303 Google Chrome: Chromium: Google Chrome / Chromium Codecs: Arbitrary Code Execution via crafted HTML page↗2026-04-15
▶
CVE-2026-6303 — Use After Free in Google Chrome | cvebase