CVE-2026-85046 (GCVE-0-2026-85046)

Vulnerability from cvelistv5 – Published: 2026-09-03 19:26 – Updated: 2026-09-21 12:53
VLAI CISA Previdian
Summary
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)
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-05 03:55 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
Google Chrome Affected: 152.0.7977.82 , < 152.0.7977.82 (custom)
guessed Create a notification for this product.
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6c7e1d1a-bf91-46a3-992d-50caf3208c7a

Vulnerability ID: CVE-2026-85046

Status: Confirmed

Status Updated: 2026-09-04 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-04
Asserted: 2026-09-04
Scope
Notes: Google Chromium V8 Type Confusion Vulnerability | Affected: Google / Chromium V8 | 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. | Due date: 2026-09-18 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-843
Feed CISA Known Exploited Vulnerabilities Catalog
Product Chromium V8
Due Date 2026-09-18
Date Added 2026-09-04
Vendorproject Google
Vulnerabilityname Google Chromium V8 Type Confusion Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-09-04 18:00 UTC | Updated: 2026-09-04 18:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 715cfc4a-3c8b-423f-a55b-e36c58140446

Vulnerability ID: CVE-2026-85046

Status: Confirmed

Status Updated: 2026-09-04 07:18 UTC

Exploited: Yes

Timestamps
First Seen: 2026-09-04
Asserted: 2026-09-04
Scope
Notes: 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... | Affected: Google / Chrome | CVSS: 8.8 (HIGH) | EPSS: 0.00462 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: previdian

Details
Feed Previdian (previdian.com)
Title 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...
Vendor Google
Product Chrome
Added Date 2026-09-04T07:18:47.000Z
Cvss Score 8.8
Epss Score 0.00462
Cvss Severity HIGH
Epss Percentile 0.38423
Used In Malware unknown
Ahead Of Cisa Kev 
{
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  "unit": "hour"
}
Not Yet In Cisa Kev False
References
Created: 2026-09-05 08:00 UTC | Updated: 2026-09-05 08:00 UTC
Show details on NVD website
To clipboard 

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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.