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Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2026-85046
Google Chromium V8 Type Confusion Vulnerability - [Actively Exploited]
Overview
Description

Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Details
INFO

Published Date :

Sept. 3, 2026, 8:17 p.m.

Last Modified :

Sept. 21, 2026, 1:17 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Required Action :

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Known Ransomware Campaign Use:

Unknown

Notes :

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-85046

Impact
Affected Products

The following products are affected by CVE-2026-85046 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Google chrome
2 Google chrome
3 Google v8
1 Microsoft edge_chromium
: Total Affected Vendor : 2 | Products : 4
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
Solution
Update Chrome to patch a V8 type confusion vulnerability that allows arbitrary code execution.
  • Update Google Chrome to version 152.0.7977.82 or later.
  • Ensure the V8 JavaScript engine is updated.
  • Avoid opening untrusted HTML pages.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-85046.

URL Resource
https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html Release Notes Vendor Advisory
https://issues.chromium.org/issues/542403045 Permissions Required
https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.md Exploit Third Party Advisory
https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67 Patch
https://news.ycombinator.com/item?id=49570669 Issue Tracking Third Party Advisory
https://serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/ Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-85046 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-85046 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-85046 vulnerability anywhere in the article.

  • The Hacker News
Chinese Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy CLEANGULP Malware

A Chinese threat actor codenamed UTA0565 has been observed exploiting the recently disclosed Google Chrome-Microsoft Windows exploit chain as zero-days through fake websites. The attacks, detected on ... Read more

Published Date: Sep 23, 2026 (1 day, 7 hours ago)
  • The Hacker News
China-Linked Hackers Exploit Chrome-Windows Zero-Day Chain to Deploy GRIMWEDGE

A Chinese threat actor has been attributed to a spear-phishing campaign that exploits recently patched security flaws in Google Chrome and Microsoft Windows to deliver a malicious JavaScript backdoor ... Read more

Published Date: Sep 15, 2026 (1 week, 2 days ago)
  • Krypt3ia
Weekly ALL-SOURCE Cyber Warfare Intelligence Brief 9.14.26

Reporting period: September 7–14, 2026Scope: State and state-aligned cyber operations, APT activity, technical campaign intelligence, active exploitation, and cyber-enabled military/intelligence activ ... Read more

Published Date: Sep 14, 2026 (1 week, 3 days ago)
  • security.nl
Google Chrome-gebruikers op Windows 10 doelwit zeroday-aanval

Gebruikers van Google Chrome op Windows 10 zijn het doelwit geworden van een zeroday-aanval, zo meldt cybersecuritybedrijf Proofpoint. De aanvallers combineerden drie kwetsbaarheden waar op het moment ... Read more

Published Date: Sep 10, 2026 (2 weeks ago)
  • The Hacker News
Four Spy Groups Used the Same Chrome and Windows Exploit Kit Within a Week

Multiple espionage-motivated threat activity clusters have been found deploying a previously undocumented exploit kit called BlueMoon that chains together multiple vulnerabilities in Microsoft Windows ... Read more

Published Date: Sep 09, 2026 (2 weeks ago)
  • Proofpoint
Once in a BlueMoon: Multiple State-Aligned Threat Actors Rapidly Adopt Novel Exploit Chain Using Chrome and Windows Zero-Days

September 09, 2026 By Mark Kelly, Greg Lesnewich, Konstantin Klinger, Saher Naumaan, Julia Paluch, David Galazin, Stuart Del Caliz, and the Proofpoint Threat Research Team Analyst note: Proofpoint use ... Read more

Published Date: Sep 09, 2026 (2 weeks, 1 day ago)
  • The Hacker News
Chrome V8 Zero-Day Exploited in the Wild Enables Code Execution Inside Sandbox

Google on Thursday released updates to patch 230 security vulnerabilities, including one that has come under active exploitation in the wild. The medium-severity vulnerability, assigned the CVE identi ... Read more

Published Date: Sep 09, 2026 (2 weeks, 1 day ago)
  • Krypt3ia
Weekly ALL-SOURCE Cyber Warfare Intelligence Brief September 8, 2026

Reporting period: August 31–September 7, 2026Focus: State and state-aligned cyber operations, APT activity, technical campaign intelligence, critical-infrastructure espionage, and campaign evolution. ... Read more

Published Date: Sep 08, 2026 (2 weeks, 1 day ago)
  • The Hacker News
Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day

Google on Thursday released security updates to patch 12 vulnerabilities, including one that has come under active exploitation in the wild. The high-severity vulnerability, tracked as CVE-2026-85046 ... Read more

Published Date: Sep 04, 2026 (2 weeks, 6 days ago)
  • security.nl
Google waarschuwt voor actief misbruik van beveiligingslek in Chrome

Google waarschuwt voor actief misbruik van een beveiligingslek in Chrome. Er zijn updates uitgebracht om het probleem te verhelpen. De kwetsbaarheid is aanwezig in V8, de JavaScript-engine die Chrome ... Read more

Published Date: Sep 04, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-85046 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 21, 2026

    Action Type Old Value New Value
    Changed SSVC {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T00:00:00+00:00'} {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-05T03:55:28.709112Z'}
  • Reanalysis by [email protected]

    Sep. 08, 2026

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:google:v8:*:*:*:*:*:*:*:* versions up to (excluding) 15.3.348 OR *cpe:2.3:a:google:v8:*:*:*:*:*:*:*:* versions up to (excluding) 15.3.48
  • Reanalysis by [email protected]

    Sep. 08, 2026

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:google:v8:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.348 OR *cpe:2.3:a:google:v8:*:*:*:*:*:*:*:* versions up to (excluding) 15.3.348
  • Modified Analysis by [email protected]

    Sep. 08, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:google:v8:*:*:*:*:*:*:*:* versions up to (excluding) 5.3.348
    Added Reference Type CVE: https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.md Types: Exploit, Third Party Advisory
    Added Reference Type CVE: https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67 Types: Patch
    Added Reference Type CVE: https://news.ycombinator.com/item?id=49570669 Types: Issue Tracking, Third Party Advisory
    Added Reference Type CVE: https://serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/ Types: Exploit, Third Party Advisory
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Sep. 06, 2026

    Action Type Old Value New Value
    Added Reference https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.md
    Added Reference https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67
    Added Reference https://news.ycombinator.com/item?id=49570669
    Added Reference https://serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 05, 2026

    Action Type Old Value New Value
    Changed SSVC {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-04T17:11:12.511485Z'} {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T00:00:00+00:00'}
  • Initial Analysis by [email protected]

    Sep. 04, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* versions up to (excluding) 152.0.7977.82
    Added Reference Type Chrome: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html Types: Release Notes, Vendor Advisory
    Added Reference Type Chrome: https://issues.chromium.org/issues/542403045 Types: Permissions Required
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046 Types: US Government Resource
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Sep. 04, 2026

    Action Type Old Value New Value
    Added Date Added 2026-09-04
    Added Due Date 2026-09-04
    Added Required Action 2026-09-04
    Added Vulnerability Name 2026-09-04
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 04, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046
    Changed SSVC {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T00:00:00+00:00'} {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-04T17:11:12.511485Z'}
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 04, 2026

    Action Type Old Value New Value
    Changed SSVC {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T19:43:45.512709Z'} {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T00:00:00+00:00'}
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Sep. 03, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added SSVC {'id': 'CVE-2026-85046', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-09-03T19:43:45.512709Z'}
  • New CVE Received by [email protected]

    Sep. 03, 2026

    Action Type Old Value New Value
    Added Description Type confusion in V8 in Google Chrome prior to 152.0.7977.82 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
    Added CWE CWE-843
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/85xxx/CVE-2026-85046.json">CVE-2026-85046</a>
    Added Reference https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html
    Added Reference https://issues.chromium.org/issues/542403045
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact