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TI-2026-81619 Aliases CVE-2026-118346GHSA-pgvr-mrf9-wg88

Out of bounds read in Compositing in Google Chrome

Priority LOW 39CWE-125Published · 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 before 156.0.8078.73 is affected. An out-of-bounds read in Compositing (CWE-125) lets a remote attacker who has compromised the renderer process read memory outside the sandbox. The attacker also needs social engineering to get 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

Out of bounds read in Compositing in Google Chrome prior to 156.0.8078.73 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00221 12th 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.

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-2026-118346
  2. 2026-10-28 Alias added: GHSA-pgvr-mrf9-wg88
  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