chromium-browser: Use after free in Extensions
Published Mar 20, 2026
9.6
CRITICALCVSS 3.1
EPSS 0.25%
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
-
- Version 146.0.7680.153StatusaffectedConstraints<146.0.7680.153
- Version
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
1 other source (Red Hat) ▾
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Mar 20, 2026 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.25% (0.00252) | 15.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.19% (0.00193) | 9.06th | v5 (v2026.06.15) |
| Mar 20, 2026 | 0.01% (0.00008) | 0.72th | v4 (v2025.03.14) |
References (6)
- https://access.redhat.com/security/cve/CVE-2026-4458 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2449395 Issue Tracking
- https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html Release NotesVendor Advisory
- https://issues.chromium.org/issues/489619753 Issue TrackingPermissions Required
- https://nvd.nist.gov/vuln/detail/CVE-2026-4458
- https://www.cve.org/CVERecord?id=CVE-2026-4458
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2026-4458 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=2449395 | Issue Tracking | |
| https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html | Release NotesVendor Advisory | |
| https://issues.chromium.org/issues/489619753 | Issue TrackingPermissions Required | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-4458 | ||
| https://www.cve.org/CVERecord?id=CVE-2026-4458 |
Change history (0)
No recorded changes yet.