CVE-2026-8563

Name: CVE-2026-8563
Creator: NVD / NIST
Published: 2026-05-14T20:17:18.44+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2026-8563 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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). EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

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)

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.18%

8.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-693

Affected Software

Vendor	Product	Versions
Google	Chrome	< 148.0.7778.168

References

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_12.htmlVendor Advisory
https://issues.chromium.org/issues/40061220Permissions Required

Timeline

Published: May 14, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-8563?

How severe is CVE-2026-8563?

CVE-2026-8563 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8563?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8563?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST