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TI-2026-68707 Aliases CVE-2026-106243GHSA-4frc-743q-hfxf

Incomplete cleanup in Proxy Auth in Google Chrome exposes sensitive information

Priority LOW 23CWE-459Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

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

Summary

Incomplete cleanup (CWE-459) in Proxy Auth in Google Chrome before 155.0.8059.39 lets an adjacent attacker obtain sensitive information through crafted network traffic. Chromium rates the flaw High severity, and the CVSS 3.1 base score is 5.3 (MEDIUM). CISA's SSVC data lists exploitation as none and the issue as not automatable, and CISA has not added it to KEV.

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

Description from the CNA

Incomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic. (Chromium security severity: High)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00107 1st 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 155.0.8059.39, the fixed version.

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-2026-106243
  2. 2026-10-07 CVSS score added · CISA ADP
  3. 2026-10-07 CISA SSVC decision points changed
  4. 2026-10-07 Alias added: GHSA-4frc-743q-hfxf
  5. 2026-10-07 Affected versions changed · Red Hat
  6. 2026-10-07 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