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CVE-2026-11118

HighPublished

Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML...

Published: Jun 4, 2026
Updated: Jun 6, 2026
Assigning CNA: Chrome
Evidence observed: Aug 14, 2026

Primary CVSS

8.8/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 32.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

Use after free in WebRTC in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)

Sources

CVE-2026-11118-HTTP-2-Rapid-Reset-DDoSPoC
Python PoC for CVE-2026-11118 demonstrating HTTP/2 Rapid Reset DDoS via RST_STREAM resource exhaustion; includes vulnerable server simulator and exploit client.

Responsible use

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