CVE-2026-19558

HIGHCVSS 7.5/10

Last modified

CVE-2026-19558 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High).

Description

Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)

Metrics

CVSS 3.1
7.5/10

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

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
GoogleChrome>= 151.0.7922.137, < 151.0.7922.137

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-19558?
Use after free in Extensions in Google Chrome prior to 151.0.7922.137 allowed an attacker who convinced a user to install a malicious extension to execute arbitrary code inside a sandbox via a crafted Chrome Extension. (Chromium security severity: High)
How severe is CVE-2026-19558?
CVE-2026-19558 has a CVSS score of 7.5/10 (HIGH severity).
How do I fix CVE-2026-19558?
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.

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Source: NVD / NIST