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Use after free in Google Chrome on Android enables code execution

Priority MEDIUM 43CWE-416Published · 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-416 and the CVSS impact.

Summary

Google Chrome on Android before 156.0.8078.73 contains a use after free flaw in Core (CWE-416). A remote attacker who has compromised the renderer process can execute arbitrary code outside the sandbox via a crafted HTML page. Exploitation requires user interaction.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

Use after free in Core in Google Chrome on on Android prior to 156.0.8078.73 allowed a remote attacker who had compromised the renderer process to execute arbitrary code outside 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 0.00354 29th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 156.0.8078.73

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
GoogleChrome156.0.8078.73 to before 156.0.8078.73156.0.8078.73Patch availableCNA
  • Chrome VendorGoogle Affected 156.0.8078.73 to before 156.0.8078.73 Fixed in 156.0.8078.73 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 156.0.8078.73VulnerableGoogle
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*not specified by NVDRunning onGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 156.0.8078.73 Vulnerable ·Google
  • cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google

Remediation

Google Chrome on Android is fixed in 156.0.8078.73. Update to that version or later.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA Chrome (Google) Fixed in 156.0.8078.73

Fixed in the same release

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

  • Release ·

    Google Chrome 156.0.8078.73

    52 records Highest priority Priority MEDIUM 43 MEDIUM, 9 LOW

    Other records, highest priority first

    • TI-2026-81628 Use after free in Google Chrome Command allows sandbox code executionPriority MEDIUM 43
    • TI-2026-81615 Use after free in Google Chrome Editing allows code executionPriority MEDIUM 43
    • TI-2026-81605 Use after free in Compositing in Google Chrome enables code executionPriority MEDIUM 43

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-118321
  2. 2026-10-28 Alias added: GHSA-6m8r-977r-pxw2
  3. 2026-10-28 CVSS score added · CISA ADP
  4. 2026-10-28 CISA SSVC decision points changed
  5. 2026-10-28 Priority changed: LOW → MEDIUM
  6. 2026-10-29 Affected versions changed · Red Hat
  7. 2026-10-29 CVSS score added · Red Hat
  8. 2026-11-03 Title updated · CNA
  9. 2026-11-03 Weakness changed · CNA

References

  • 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