CVE-2026-85046
Summary
| CVE | CVE-2026-85046 |
|---|---|
| State | PUBLISHED |
| Assigner | Chrome |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-03 20:17:24 UTC |
| Updated | 2026-09-21 13:17:10 UTC |
| 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) |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS: 0.488810000 probability, percentile 0.988440000 (date 2026-10-01)
CISA KEV: Listed on 2026-09-04; due 2026-09-18; ransomware use Unknown
Problem Types: CWE-843 | CWE-843 Type confusion
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
NetworkAttack Complexity
LowPrivileges Required
NoneUser Interaction
RequiredScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CISA Known Exploited Vulnerability
| Vendor | |
|---|---|
| Product | Chromium V8 |
| Name | Google Chromium V8 Type Confusion Vulnerability |
| 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 |
NVD Known Affected Configurations (CPE 2.3)
Vendor Declared Affected Products
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cisa.gov/known-exploited-vulnerabilities-catalog | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | www.cisa.gov | US Government Resource |
| serotav.github.io/Writeups/v8/when-sorting-leads-to-confusion | af854a3a-2127-422b-91ae-364da2661108 | serotav.github.io | Exploit, Third Party Advisory |
| news.ycombinator.com/item | af854a3a-2127-422b-91ae-364da2661108 | news.ycombinator.com | Issue Tracking, Third Party Advisory |
| chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.html | [email protected] | chromereleases.googleblog.com | Release Notes, Vendor Advisory |
| github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67 | af854a3a-2127-422b-91ae-364da2661108 | github.com | Patch |
| github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea... | af854a3a-2127-422b-91ae-364da2661108 | github.com | Exploit, Third Party Advisory |
| issues.chromium.org/issues/542403045 | [email protected] | issues.chromium.org | Permissions Required |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.