CVE-2026-5866

CWE-416 — Use After FreeCWE-82510 documents10 sources
Severity
8.8HIGH
EPSS
0.1%
top 76.44%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Google Chrome
Timeline
PublishedApr 8
Latest updateApr 10

Description

Use after free in Media in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages1 packages

▶CVEListV5google/chrome147.0.7727.55 — 147.0.7727.55

🔴Vulnerability Details

4
VulDB
Google Chrome up to 146.0.7680.178 Media use after free (ID 492218 / WID-SEC-2026-1030)↗2026-04-10
▶
GHSA
GHSA-42f8-mjwj-phf3: Use after free in Media in Google Chrome prior to 147↗2026-04-09
▶
OSV
CVE-2026-5866: Use after free in Media in Google Chrome prior to 147↗2026-04-08
▶
CVEList
CVE-2026-5866: Use after free in Media in Google Chrome prior to 147↗2026-04-08
▶

📋Vendor Advisories

3
Red Hat
chromium-browser: Use after free in Media↗2026-04-07
▶
Chrome
Stable Channel Update for Desktop: CVE-2026-5864↗2026-04-07
▶
Debian
CVE-2026-5866: chromium - Use after free in Media in Google Chrome prior to 147.0.7727.55 allowed a remote...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-5866 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶

💬Community

1
Bugzilla
CVE-2026-5866 chromium-browser: Use after free in Media↗2026-04-08
▶
CVE-2026-5866 (HIGH CVSS 8.8) | Use after free in Media in Google C | cvebase.io