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TI-2026-84701 Aliases CVE-2026-121163GHSA-jqpp-5xfp-8r4j

Google Chrome Browser Input Validation Flaw Allows Sandbox Escape

Priority LOW 38CWE-20Published · Updated

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

Improper input validation in the Browser component of Google Chrome before 157.0.8103.38 (CWE-20) lets a remote attacker who has already compromised the renderer process execute arbitrary code outside the sandbox. The attacker sends crafted network traffic. The Chromium security severity is Medium, and the CVSS 3.1 base score is 8.3 (HIGH). The vulnerability is not in CISA's KEV catalog, and CISA's SSVC data shows no known exploitation.

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

Description from the CNA

Improper input validation in Browser in Google Chrome prior to 157.0.8103.38 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside the sandbox via crafted network traffic. (Chromium security severity: Medium)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00289 21st 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 157.0.8103.38 or later. Red Hat lists one product as not affected.

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-2026-121163
  2. 2026-11-03 Alias added: GHSA-jqpp-5xfp-8r4j
  3. 2026-11-04 Affected versions changed · Red Hat
  4. 2026-11-04 CVSS score added · Red Hat
  5. 2026-11-04 CVSS score added · CISA ADP
  6. 2026-11-04 CISA SSVC decision points changed
  7. 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