What is CVE-2026-5284?
Use after free in Dawn (WebGPU) in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to execute arbitrary code via a crafted HTML page. This is the third Dawn use-after-free vulnerability reported by the same researcher who disclosed CVE-2026-4676 and CVE-2026-5281, suggesting systematic research into Chrome's GPU subsystem. Patched in Chrome 146.0.7680.177/178 released March 31, 2026 as part of an emergency update addressing 21 total vulnerabilities. (Chromium security severity: High)
The record classifies CVE-2026-5284 under weakness class CWE-416. Its CVSS v3 base vector states that the flaw is reachable remotely over the network, needs no prior authentication, needs a user to take an action first, and has high impact on confidentiality, integrity, availability. 4 affected-product entries are recorded, across 4 vendors, listed below. The identifier was first published 187 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 7.5 — HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - EPSS (FIRST)
- 0.0% probability of exploitation in the next 30 days, higher than 23.8% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 4.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-04-01
Is CVE-2026-5284 being exploited?
It currently carries a trending score of 16 in the Threadlinqs vulnerability feed.
Affected products and versions
How to fix CVE-2026-5284
The record marks a vendor fix as available for CVE-2026-5284. Patch reference: https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html. Vendor advisory: https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_31.html. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2026-5284
No threat campaign in the Threadlinqs corpus currently references CVE-2026-5284, in its CVE list or as an indicator. The linkage is recomputed from the live corpus on every daily ingest, so this section fills in as soon as a tracked campaign cites the identifier.
Sources
Seeded from threat-derived and not yet processed by the Threadlinqs enrichment pipeline, so blank CVSS, EPSS or KEV fields above mean NOT MEASURED rather than measured-absent.