Use after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chr

Description

Use after free in Extensions in Google Chrome prior to 146.0.7680.153 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted Chrome Extension. (Chromium security severity: High)

Affected Products

Vendor	Product	Versions
google	chrome	< 146.0.7680.153

References

https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html(Vendor Advisory, Release Notes)
https://issues.chromium.org/issues/489619753(Issue Tracking, Permissions Required)

Related News (1 articles)

Tier A

Microsoft MSRC4d ago

Chromium: CVE-2026-4458 Use after free in Extensions

→ No new info (linked only)

CVSS 3.18.8 HIGH

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

CISA KEV❌ No

Actively exploited✅ Yes

CWECWE-416

Published3/20/2026

Last enriched2h agov3

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Verification

State: verified

Confidence: 100%

Version History

Last enriched 2h ago

v3Tier A2h ago

Updated vendor to Google, product to Chrome, and added new tag CVE-2026-4458.

vendorproducttags

via Microsoft MSRC

v2Tier A9h ago

Updated vendor to Microsoft and product to Edge, and marked exploit availability and active exploitation as true.

vendorproductexploitAvailableactivelyExploited

via Microsoft MSRC

v110h ago

Initial creation