CVE-2026-85046Type 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.
Updated under an hour ago ()
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It affects Google Chrome and 1 other product. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Sep 4, 2026; federal agencies had to remediate by Sep 18, 2026. Treat that date as your deadline.
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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)
- CVSS
- 8.8 HIGH (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-843
- Known exploited
- Added to CISA KEV Sep 4, 2026; federal remediation due Sep 18, 2026Apply 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.
- EPSS (exploitation in the next 30 days)
- 48.88% (percentile 99)
- Assigned by
- Chrome
- NVD analysis
- Analyzed
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Google Chrome google:chrome (from the name) | from 152.0.7977.82 before 152.0.7977.82 | CNA record |
google chrome google:chrome | before 152.0.7977.82 | NVD |
google v8 google:v8 | before 15.3.48 | NVD |
References
- https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01882797386.htmlrelease-notes, vendor-advisory
- https://issues.chromium.org/issues/542403045permissions-required
- https://github.com/Serotav/Writeups/blob/77556c57999805fa7815a114da51d91cf24fbea9/v8/When_Sorting_Leads_To_Confusion.mdexploit, third-party-advisory
- https://github.com/v8/v8/commit/e0562d87ad9c17042b581582c99237d798572e67patch
- https://news.ycombinator.com/item?id=49570669issue-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-2026-85046us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.