Use after free in Google Chrome on Android enables code execution
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
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 | 156.0.8078.73 to before 156.0.8078.73 | 156.0.8078.73 | Patch available | CNA |
- Chrome VendorGoogle Affected 156.0.8078.73 to before 156.0.8078.73 Fixed in 156.0.8078.73 Patch available CNA
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
Timeline
- 2026-10-27 Threatist record created from CVE-2026-118321
- 2026-10-28 Alias added: GHSA-6m8r-977r-pxw2
- 2026-10-28 CVSS score added · CISA ADP
- 2026-10-28 CISA SSVC decision points changed
- 2026-10-28 Priority changed: LOW → MEDIUM
- 2026-10-29 Affected versions changed · Red Hat
- 2026-10-29 CVSS score added · Red Hat
- 2026-11-03 Title updated · CNA
- 2026-11-03 Weakness changed · CNA
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-2026-118321 · CVE Program
- CVE-2026-118321 · NVD
- FIRST EPSS
- GHSA-6m8r-977r-pxw2 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-118321 · 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