Improper input validation in Google Chrome
Priority LOW 32CWE-20Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Insufficient data validation in loader in Google Chrome prior to 96.0.4664.93 allowed a remote attacker to leak cross-origin data via a crafted HTML page.
Why it matters now
EPSS 0.01317 70th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 96.0.4664.93
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Chrome | before 96.0.4664.93 | 96.0.4664.93 | Patch available | CNA |
- Chrome VendorGoogle Affected before 96.0.4664.93 Fixed in 96.0.4664.93 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* | before 96.0.4664.93 | Vulnerable | |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | 11.0 | Vulnerable | Debian |
- cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 96.0.4664.93 Vulnerable ·Google
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
- cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian
Remediation
- Fix · CNA Chrome (Google) Fixed in 96.0.4664.93
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 96.0.4664.93
18 records Highest priority Priority MEDIUM 15 MEDIUM, 3 LOW
Other records, highest priority first
- TI-2021-02943 Use after free in Google ChromePriority MEDIUM 42
- TI-2021-02952 Use after free in Google ChromePriority MEDIUM 41
- TI-2021-02951 Integer underflow in Google ChromePriority MEDIUM 41
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2021-4059
- 2026-10-03 Alias added: GHSA-5g9f-524h-jx5v
References
More Google Chrome vulnerabilities
- TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
- TI-2024-07390 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04898 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04600 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2024-04346 Use after free in Google Chrome KEVCVSS 3.1CRITICAL 9.6
- TI-2023-05824 Integer overflow in Google Chrome KEVCVSS 3.1CRITICAL 9.6
Sources
- CVE-2021-4059 · CVE Program
- CVE-2021-4059 · NVD
- FIRST EPSS
- GHSA-5g9f-524h-jx5v · GitHub Advisory Database · CC BY 4.0
- CVE-2021-4059 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences