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TI-2026-84762 Aliases CVE-2026-121226GHSA-449g-f2p5-43cx

Type confusion in V8 in Google Chrome allows sandbox code execution

Priority MEDIUM 40CWE-843Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-843 and the CVSS impact.

Summary

Google Chrome prior to 157.0.8103.38 contains a type confusion flaw in the V8 JavaScript engine (CWE-843). A remote attacker can potentially execute arbitrary code inside the sandbox via a crafted HTML page. The Chromium project rates the issue High severity.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

Type confusion in V8 in Google Chrome prior to 157.0.8103.38 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00403 34th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 157.0.8103.38

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

VendorProductAffected versionsFixed inStatusSource
GoogleChrome157.0.8103.38 to before 157.0.8103.38157.0.8103.38Patch availableCNA
  • Chrome VendorGoogle Affected 157.0.8103.38 to before 157.0.8103.38 Fixed in 157.0.8103.38 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 157.0.8103.38VulnerableGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 157.0.8103.38 Vulnerable ·Google

Remediation

Update Google Chrome to version 157.0.8103.38 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA Chrome (Google) Fixed in 157.0.8103.38

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Google Chrome 157.0.8103.38

    213 records Highest priority Priority MEDIUM 96 MEDIUM, 117 LOW

    Other records, highest priority first

    • TI-2026-84793 Use after free in Chrome TabStrip lets remote attackers run codePriority MEDIUM 43
    • TI-2026-84786 Use after free in Google Chrome Extensions allows code executionPriority MEDIUM 43
    • TI-2026-84785 Buffer overflow in ANGLE in Google Chrome allows code executionPriority MEDIUM 43
    Show all 213 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-11-03 Threatist record created from CVE-2026-121226
  2. 2026-11-03 CVSS score added · CISA ADP
  3. 2026-11-03 CISA SSVC decision points changed
  4. 2026-11-03 Alias added: GHSA-449g-f2p5-43cx
  5. 2026-11-04 Affected versions changed · Red Hat
  6. 2026-11-04 CVSS score added · Red Hat
  7. 2026-11-05 Priority changed: LOW → MEDIUM
  8. 2026-11-05 CISA SSVC decision points changed
  9. 2026-11-05 CISA SSVC decision points changed

References

Advisory 1

Other 1

  • 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
See all 7586 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences