CVE-2026-7958

Name: CVE-2026-7958
Creator: NVD / NIST
Published: 2026-05-06T19:16:45.693+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.14%

Last modified Jun 17, 2026

CVE-2026-7958 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to inject arbitrary scripts or HTML (UXSS) via a crafted Chrome Extension. (Chromium security severity: Medium). EPSS estimates a 0.14% chance of exploitation in the next 30 days.

Description

Inappropriate implementation in ServiceWorker in Google Chrome prior to 148.0.7778.96 allowed an attacker who convinced a user to install a malicious extension to inject arbitrary scripts or HTML (UXSS) via a crafted Chrome Extension. (Chromium security severity: Medium)

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.14%

3.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Google	Chrome	< 148.0.7778.96

References

https://chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://issues.chromium.org/issues/496632973Permissions Required

Timeline

Published: May 6, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-7958?

How severe is CVE-2026-7958?

CVE-2026-7958 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.14% probability of exploitation in the next 30 days.

How do I fix CVE-2026-7958?

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-2026-7958?

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

Scan your code now

Source: NVD / NIST