CVE-2026-9115

FAUCET Score

Insufficient policy enforcement in Service Worker in Google Chrome on prior to 148.0.7778.179 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)

First published: May 20, 2026Last modified: May 20, 2026

Impacted Technologies

Vendor	Product	Version(s)	CPE
		< 148.0.7778.179CPE matchmatch criteria	cpe:2.3:a:google:chrome::::::::
		>= 148.0.7778.179, < 148.0.7778.179CPE 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:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

Exploitability Score

2.8

Impact Score

1.4

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.22%

Probability of exploitation in next 30 days

EPSS Percentile

13.2%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0022 is in the 13th percentile among its peer group of 26,234 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

No media coverage found for this CVE.

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: 148.0.3967.83

Vendor Advisories (1)

microsoft2026-May/CVE-2026-9115

Chromium: CVE-2026-9115 Insufficient policy enforcement in Service Worker

May 12, 2026

References

chromereleases.googleblog.com / 2026/05/stable-channel-update-for-desktop_0841193308.html

Vendor Advisory

issues.chromium.org / issues/495999481

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