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TI-2026-68759 Aliases CVE-2026-106295GHSA-c34x-5v75-6mcp

Chrome Unbounded Element authorization flaw allows UI spoofing

Priority LOW 19CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-863.

Summary

Incorrect authorization in Unbounded Element in Google Chrome before 155.0.8059.39 lets a remote attacker who has compromised the renderer process spoof UI elements through a crafted HTML page. The Chromium security severity is Medium, and the CVSS 3.1 base score is 4.2 (MEDIUM). The weakness is CWE-863, Incorrect Authorization. CISA's SSVC data shows no known exploitation, not automatable, and partial technical impact, and the vulnerability is not in CISA KEV.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

Incorrect authorization in Unbounded Element in Google Chrome prior to 155.0.8059.39 allowed a remote attacker who had compromised the renderer process to spoof UI elements via a crafted HTML page. (Chromium security severity: Medium)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00168 6th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 155.0.8059.39

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleChrome155.0.8059.39 to before 155.0.8059.39155.0.8059.39Patch availableCNA
  • Chrome VendorGoogle Affected 155.0.8059.39 to before 155.0.8059.39 Fixed in 155.0.8059.39 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 155.0.8059.39VulnerableGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 155.0.8059.39 Vulnerable ·Google

Remediation

Update Google Chrome to version 155.0.8059.39 or later, which contains the fix.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Chrome (Google) Fixed in 155.0.8059.39

Fixed in the same release

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

  • Release ·

    Google Chrome 155.0.8059.39

    247 records Highest priority Priority MEDIUM 54 MEDIUM, 193 LOW

    Other records, highest priority first

    • TI-2026-68849 Uninitialized resource in WebAudio in Google Chrome exposes memoryPriority MEDIUM 62
    • TI-2026-68659 Chrome Chromoting on Mac flaw lets remote attackers bypass access restrictionsPriority MEDIUM 47
    • TI-2026-68758 Incomplete cleanup in Chrome Chromoting on Mac allows access bypassPriority MEDIUM 45
    Show all 247 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-06 Threatist record created from CVE-2026-106295
  2. 2026-10-07 Alias added: GHSA-c34x-5v75-6mcp
  3. 2026-10-07 CVSS score added · CISA ADP
  4. 2026-10-07 CISA SSVC decision points changed
  5. 2026-10-10 Affected versions changed · Red Hat
  6. 2026-10-10 CVSS score added · Red Hat

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