CVE-2026-9114

chromium-browser: Use after free in QUIC

Published May 20, 2026 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Use after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: High)

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DSA Debian DSA DSA-6287-1 chromium security update
History
Type Values Removed Values Added
Title chromium-browser: Use after free in QUIC
Weaknesses CWE-825
References
Metrics threat_severity

None

threat_severity

Important

Type Values Removed Values Added
First Time appeared Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
Vendors & Products Apple
Apple macos
Linux
Linux linux Kernel
Microsoft
Microsoft windows
Type Values Removed Values Added
Title Use‑after‑Free in QUIC Allows Remote Code Execution in Chrome
Type Values Removed Values Added
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome
Type Values Removed Values Added
Title Use‑after‑Free in QUIC Allows Remote Code Execution in Chrome
Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Use after free in QUIC in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to execute arbitrary code inside a sandbox via malicious network traffic. (Chromium security severity: High)
Weaknesses CWE-416
References
Weaknesses

Sources

Status
PUBLISHED
Assigner
Chrome
Published
Updated
May 21, 2026, 3:55 AM
Reserved
May 20, 2026, 5:39 PM
Status
Analyzed
Published
May 20, 2026, 8:16 PM
Modified
Jul 23, 2026, 3:10 PM
Severity
Important
Public date
May 19, 2026, 12:00 AM