Improper input validation in Google Chrome
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Insufficient validation of untrusted input in Accessibility in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Critical)
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Chrome | 149.0.7827.115 to before 149.0.7827.115 | 149.0.7827.115 | Patch available | CNA |
- Chrome VendorGoogle Affected 149.0.7827.115 to before 149.0.7827.115 Fixed in 149.0.7827.115 Patch available CNA
Remediation
- Fix · CNA Chrome (Google) Fixed in 149.0.7827.115
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Google Chrome 149.0.7827.115
27 records Highest priority Priority MEDIUM 2 MEDIUM, 25 LOW
Other records, highest priority first
- TI-2026-10366 Protection mechanism failure in Google ChromePriority MEDIUM 42
- TI-2026-10348 Use after free in Google ChromePriority MEDIUM 40
- TI-2026-10374 Use after free in Google ChromePriority LOW 39
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-12009
- 2026-10-03 Alias added: GHSA-4h4g-832r-8c7f
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-2026-12009 · CVE Program
- CVE-2026-12009 · NVD
- FIRST EPSS
- GHSA-4h4g-832r-8c7f · GitHub Advisory Database · CC BY 4.0
- CVE-2026-12009 · 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