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TI-2026-81626 Aliases CVE-2026-118353GHSA-87x2-8pvv-68m2

Missing authorization in Chrome Paint exposes cross-origin data

Priority LOW 39CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Security bypass
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-862.

Summary

Google Chrome prior to 156.0.8078.73 is affected. A missing authorization check in Paint (CWE-862) lets a remote attacker obtain cross-origin data. The attacker needs a user to open a crafted HTML page.

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

Description from the CNA

Missing authorization in Paint in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to obtain cross-origin data via a crafted HTML page. (Chromium security severity: High)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00212 11th 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 · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 156.0.8078.73VulnerableGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 156.0.8078.73 Vulnerable ·Google

Remediation

Update Google Chrome to 156.0.8078.73 or later. The sources list no advisory identifiers for this fix.

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
    Show all 52 records →

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-2026-118353
  2. 2026-10-28 Alias added: GHSA-87x2-8pvv-68m2
  3. 2026-10-28 CVSS score added · CISA ADP
  4. 2026-10-28 CISA SSVC decision points changed
  5. 2026-10-29 CISA SSVC decision points changed
  6. 2026-10-30 Priority changed: LOW → MEDIUM
  7. 2026-10-30 Affected versions changed · Red Hat
  8. 2026-10-30 CVSS score added · Red Hat
  9. 2026-11-03 Title updated · CNA
  10. 2026-11-03 Weakness changed · CNA
  11. 2026-11-05 Priority changed: MEDIUM → LOW

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