Google Chromium V8 Type Confusion Vulnerability
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)
What happened
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)
CISA lists it as exploited, added 04 Sep 2026.
Does it affect you
Names Google Chrome. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Follow the vendor advisory for the fixed release and any interim mitigation.
chromereleases.googleblog.com - 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.
cisa.gov
CISA’s notes for this entry:
- chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html
- BOD 26-04: cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk
- Forensics Triage Requirements: cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk
- nvd.nist.gov/vuln/detail/CVE-2026-85046
Affected, as published to NVD
- chrome
- Google Chrome: everything below 152.0.7977.82
The record
- NVD status
- Modified
- Published
- 03 Sep 2026, last modified 06 Sep 2026 (NVD)
- Severity
- CVSS 3.1 base score 8.8, High — computed here from the vector; NVD states 8.8.
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness
- CWE-843 Access of Resource Using Incompatible Type ('Type Confusion') (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 04 Sep 2026; federal remediation due 18 Sep 2026. CISA entry
- Exploit probability
- EPSS 1.2%, 65th percentile — FIRST, scored 07 Sep 2026. FIRST EPSS
- Vendor
- Google · Chromium V8 (CISA)
References on the NVD record
- chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.htmlRelease NotesVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-85046US Government Resource
- issues.chromium.org/issues/542403045Permissions Required
- github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.md
- github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67
- news.ycombinator.com/item?id=49570669
- serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion/
Reporting that names this identifier
- Google patches actively exploited Chrome zero-day (CVE-2026-85046) — Help Net Security, 3 d ago
- CISA Adds One Known Exploited Vulnerability to Catalog — CISA, 3 d ago
- Google Releases Chrome Update to Patch Actively Exploited V8 Zero-Day — The Hacker News, 3 d ago
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.