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TI-2020-12573 Aliases CVE-2020-15961GHSA-p56m-hx7c-pjv5

Insufficient policy validation in extensions in Google Chrome prior to 85.0.4183.121…

Priority MEDIUM 44Published · 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 · NVD. Fix status from CNA and Red Hat.

Summary

Insufficient policy validation in extensions in Google Chrome prior to 85.0.4183.121 allowed an attacker who convinced a user to install a malicious extension to potentially perform a sandbox escape via a crafted Chrome Extension.

Why it matters now

EPSS 0.01473 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed Chrome (Google): 85.0.4183.121Red Hat: 1 advisory

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
GoogleChromebefore 85.0.4183.12185.0.4183.121Patch availableCNA
  • Chrome VendorGoogle Affected before 85.0.4183.121 Fixed in 85.0.4183.121 Patch available CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*before 85.0.4183.121VulnerableGoogle
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*15.0 sp1VulnerableopenSUSE
cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*15.0 sp2VulnerableopenSUSE
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*15.2VulnerableopenSUSE
cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*31VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*32VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*33VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* Versions before 85.0.4183.121 Vulnerable ·Google
  • cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:* Versions 15.0 sp1 Vulnerable ·openSUSE
  • cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:* Versions 15.0 sp2 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE
  • cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:* Versions 15.2 Vulnerable ·openSUSE
  • cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:* Versions 31 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* Versions 32 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

  • Fix · CNA Chrome (Google) Fixed in 85.0.4183.121

Red Hat 1 advisory

  • RHSA-2020:4206 Released 2020-10-07 · Red Hat rating Important
    chromium-browser security update
    • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser-85.0.4183.121-1.el6_10
    • Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser-85.0.4183.121-1.el6_10
    • Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser-85.0.4183.121-1.el6_10
    • Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser-85.0.4183.121-1.el6_10

Fixed in the same release

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

  • Advisory ·

    Google Chrome — openSUSE-SU-2020:1713

    13 records Highest priority Priority MEDIUM 9 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2020-05422 Use after free in Google ChromePriority MEDIUM 45
    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-05405 Out-of-bounds write in Google ChromePriority MEDIUM 44
    Show all 13 records → Advisory →
  • Advisory ·

    Google Chrome — FEDORA-2020-aea86f913e

    12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2020-05422 Use after free in Google ChromePriority MEDIUM 45
    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    Show all 12 records → Advisory →
Show 6 more groups
  • Advisory ·

    Google Chrome — FEDORA-2020-2d994b986d

    12 records Highest priority Priority MEDIUM 8 MEDIUM, 4 LOW

    Other records, highest priority first

    • TI-2020-05422 Use after free in Google ChromePriority MEDIUM 45
    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    Show all 12 records → Advisory →
  • Advisory ·

    Google Chrome — openSUSE-SU-2020:1527

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    • TI-2020-12576 Improper input validation in Google ChromePriority MEDIUM 43
    Show all 7 records → Advisory →
  • Advisory ·

    Google Chrome — openSUSE-SU-2020:1542

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    • TI-2020-12576 Improper input validation in Google ChromePriority MEDIUM 43
    Show all 7 records → Advisory →
  • Advisory ·

    Google Chrome — openSUSE-SU-2020:1550

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    • TI-2020-12576 Improper input validation in Google ChromePriority MEDIUM 43
    Show all 7 records → Advisory →
  • Advisory ·

    Google Chrome — FEDORA-2020-214865ce21

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    • TI-2020-12576 Improper input validation in Google ChromePriority MEDIUM 43
    Show all 7 records → Advisory →
  • Advisory ·

    Google Chrome — GLSA-202009-13

    7 records Highest priority Priority MEDIUM 6 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2020-12575 Insufficient policy enforcement in extensions in Google Chrome prior to 85.0.4183.121…Priority MEDIUM 44
    • TI-2020-12577 Type confusion in Google ChromePriority MEDIUM 43
    • TI-2020-12576 Improper input validation in Google ChromePriority MEDIUM 43
    Show all 7 records → Advisory →

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux Desktop Supplementary (v. 6)Fixed RHSA-2020:4206
Red Hat Enterprise Linux HPC Node Supplementary (v. 6)Fixed RHSA-2020:4206
Red Hat Enterprise Linux Server Supplementary (v. 6)Fixed RHSA-2020:4206
Red Hat Enterprise Linux Workstation Supplementary (v. 6)Fixed RHSA-2020:4206

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-15961
  2. 2026-10-03 Alias added: GHSA-p56m-hx7c-pjv5

References

Exploit 1

Advisory 11

  • 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