CVE-2026-8563

FAUCET Score

Insufficient policy enforcement in IFrame Sandbox in Google Chrome on Windows prior to 148.0.7778.168 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)

First published: May 14, 2026Last modified: May 14, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 148.0.7778.168CPE matchmatch criteria	cpe:2.3:a:google:chrome::::::::
		>= 148.0.7778.168, < 148.0.7778.168CPE match	cpe:2.3:a:google:chrome::::::::

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

Exploitability Score

2.8

Impact Score

1.4

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.18%

Probability of exploitation in next 30 days

EPSS Percentile

8.0%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0018 is in the 7th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

microsoftpatch availablevia msrc

Product: Microsoft Edge (Chromium-based)Fixed in: 148.0.3967.70

Vendor Advisories (1)

microsoft2026-May/CVE-2026-8563

Chromium: CVE-2026-8563 Insufficient policy enforcement in IFrame Sandbox

May 12, 2026

References

chromereleases.googleblog.com / 2026/05/stable-channel-update-for-desktop_12.html

Vendor Advisory

issues.chromium.org / issues/40061220

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