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TI-2026-82794 Aliases CVE-2026-76031GHSA-h33g-hwp9-mfhw

Incorrect authorization in Google Chrome Input allows origin bypass

Priority MEDIUM 40CWE-863Published · 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-863.

Summary

Google Chrome versions prior to 156.0.8078.79 contain an incorrect authorization flaw in Input (CWE-863). A remote attacker who uses social engineering can bypass the web origin policy by getting a user to open a crafted HTML page. Chromium rates the flaw's security severity as High.

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

Description from the CNA

Incorrect authorization in Input in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0026 17th percentileScored 2026-11-07
Fix Fixed Chrome (Google): 156.0.8078.79

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
GoogleChrome156.0.8078.79 to before 156.0.8078.79156.0.8078.79Patch availableCNA
  • Chrome VendorGoogle Affected 156.0.8078.79 to before 156.0.8078.79 Fixed in 156.0.8078.79 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 156.0.8078.79VulnerableGoogle
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 156.0.8078.79 Vulnerable ·Google

Remediation

Update Google Chrome to version 156.0.8078.79. The sources list no other fixed versions for Chrome.

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

  • Fix · CNA Chrome (Google) Fixed in 156.0.8078.79

Fixed in the same release

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

  • Release ·

    Google Chrome 156.0.8078.79

    21 records Highest priority Priority MEDIUM 13 MEDIUM, 8 LOW

    Other records, highest priority first

    • TI-2026-82801 Buffer overflow in Skia in Google Chrome allows sandbox escapePriority MEDIUM 43
    • TI-2026-82803 Use after free in Google Chrome GarbageCollectionPriority MEDIUM 42
    • TI-2026-82810 Incorrect reference resolution in CacheStorage in Google ChromePriority MEDIUM 40
    Show all 21 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-76031
  2. 2026-10-30 Alias added: GHSA-h33g-hwp9-mfhw
  3. 2026-10-30 Affected versions changed · Red Hat
  4. 2026-10-30 CVSS score added · Red Hat
  5. 2026-10-30 CVSS score added · CISA ADP
  6. 2026-10-30 CISA SSVC decision points changed
  7. 2026-10-31 Priority changed: LOW → MEDIUM
  8. 2026-10-31 CISA SSVC decision points changed
  9. 2026-11-03 Title updated · CNA
  10. 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