CVE-2026-8580

FAUCET Score

Use after free in Mojo in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to potentially perform a sandbox escape 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

9.6CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

Exploitability Score

2.8

Impact Score

6.0

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.21%

Probability of exploitation in next 30 days

EPSS Percentile

11.4%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0021 is in the 4th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 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-2026-8580

Chromium: CVE-2026-8580 Use after free in Mojo

May 12, 2026

References

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

Vendor Advisory

issues.chromium.org / issues/496639647

Permissions Required