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TI-2026-78339 Aliases CVE-2026-113165GHSA-fmhw-v3wh-xq72

Chrome Core on Mac flaw lets attackers execute code outside sandbox

Priority MEDIUM 40CWE-841Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Google Chrome on Mac before 156.0.8078.47 contains an inappropriate implementation in Core, a flaw in enforcing behavioral workflow (CWE-841). A remote attacker who has compromised the renderer process and uses social engineering can potentially execute arbitrary code outside the sandbox via a crafted HTML page. The CVSS 3.1 base score is 8.8 (High).

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

Description from the CNA

Inappropriate implementation in Core in Google Chrome on on Mac prior to 156.0.8078.47 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00443 38th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 156.0.8078.47

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
GoogleChrome156.0.8078.47 to before 156.0.8078.47156.0.8078.47Patch availableCNA
  • Chrome VendorGoogle Affected 156.0.8078.47 to before 156.0.8078.47 Fixed in 156.0.8078.47 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 156.0.8078.47VulnerableGoogle
cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 156.0.8078.47 Vulnerable ·Google
  • cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple

Remediation

Update Google Chrome on Mac to version 156.0.8078.47, which is the fixed version.

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

  • Fix · CNA Chrome (Google) Fixed in 156.0.8078.47

Fixed in the same release

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

  • Release ·

    Google Chrome 156.0.8078.47

    353 records Highest priority Priority HIGH 10 HIGH, 292 MEDIUM, 51 LOW

    Other records, highest priority first

    • TI-2026-78505 Observable discrepancy in Google Chrome Controls leaks sensitive dataPriority HIGH 73
    • TI-2026-78321 Input validation flaw in Google Chrome WebShare allows sandbox escapePriority HIGH 73
    • TI-2026-78320 Chrome PerformanceAPIs flaw lets web pages read cross-origin dataPriority HIGH 73
    Show all 353 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-21 Threatist record created from CVE-2026-113165
  2. 2026-10-21 Alias added: GHSA-fmhw-v3wh-xq72
  3. 2026-10-21 Affected versions changed · Red Hat
  4. 2026-10-21 CVSS score added · Red Hat
  5. 2026-10-22 Priority changed: LOW → MEDIUM
  6. 2026-11-03 Title updated · CNA
  7. 2026-11-03 Weakness changed · CNA

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