CVE WatchSep 21, 2026

CVE-2026-85046

Google Chromium V8 Type Confusion Vulnerability

CVSS

8.8

High

EPSS

48.9%

p99

KEV

YES

Sep 4, 2026

Exploit Today

0-100

Published: Sep 3, 2026 · Last modified: Sep 21, 2026 · CWE-843

EPSS · 30d

1.5%EPSS · 30 days48.9%

2026-09-212026-10-19

KEV catalog record

Product

Google / Chromium V8

Vulnerability

Google Chromium V8 Type Confusion Vulnerability

Added to KEV

Sep 4, 2026

Remediate by

Sep 18, 2026

Known ransomware use

Summary 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.

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

Technical 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)

Official references

Related CVEs

CVECVSSEPSSKEVRExploitTitleMod.

CVE-2026-869228.8 HIG

—

——0A type confusion issue was addressed with improved state management. This issue is fixed in Safari 27, iOS 27 and iPadOS 27, macOS Golden Gate 27, visionOS 27. Processing maliciously crafted web content may lead to arbitrary code execution.8h CVE-2026-868725.4 MED

—

——0A logic issue was addressed with improved state management. This issue is fixed in Safari 27, visionOS 27, watchOS 27. Processing maliciously crafted web content may lead to unexpected behavior.7h CVE-2026-110674—

—

——0Cpanel::JSON::XS versions from 4.33 before 4.80 for Perl miss duplicate non-ASCII bare keys, allowing type confusion under dupkeys_as_arrayref in decode_hv. With allow_barekey, which relaxed enables, a bare key containing a non-ASCII byte is stored as UTF-8 but looked up as raw bytes, so a repeated key escapes the duplicate-key check and replaces the earlier value. From 4.41, under dupkeys_as_arrayref, a bare repeat replaces the array that collects a key's values with a plain value, and the next quoted repeat pushes onto that value as if it were an array. A JSON integer there is dereferenced as a pointer. Untrusted JSON decoded with relaxed and dupkeys_as_arrayref can crash the process or dereference an address chosen by a JSON number.1d CVE-2026-0314—

0.8%

——0A type confusion vulnerability in Palo Alto Networks GlobalProtect™ app on Windows enables a local user with low privileges to cause a denial of service (DoS) condition. The GlobalProtect™ app on Linux, macOS, iOS, Android, and Chrome OS is not affected by this vulnerability.5d CVE-2026-1101408.8 HIG

24.7%

——7Type confusion in V8 in Google Chrome prior to 155.0.8059.79 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)6d CVE-2026-969215.5 MED

31.3%

——9Access of resource using incompatible type ('type confusion') in Windows Message Queuing Queue Manager allows an authorized attacker to disclose information locally.4d