What is CVE-2026-5286?
Use after free in Dawn (WebGPU) in Google Chrome prior to 146.0.7680.178 allowed a remote attacker to execute arbitrary code via a crafted HTML page. Patched alongside CVE-2026-5281 and CVE-2026-5284 in Chrome 146.0.7680.177/178 released March 31, 2026 as part of an emergency update addressing 21 total vulnerabilities across WebGL, WebCodecs, CSS, ANGLE, WebUSB, Web MIDI, V8, PDF handling, Navigation, and Compositing components. All Chromium-based browsers including Microsoft Edge, Brave, Opera, and Vivaldi are affected until upstream fixes are incorporated. (Chromium security severity: High)
The record classifies CVE-2026-5286 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
- 8.8 — HIGH
CVSS:3.1/AV:N/AC:L/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
- 5.4/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-04-01
Is CVE-2026-5286 being exploited?
It currently carries a trending score of 16 in the Threadlinqs vulnerability feed.
Affected products and versions
How to fix CVE-2026-5286
The record marks a vendor fix as available for CVE-2026-5286. 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-2026-5286
No threat campaign in the Threadlinqs corpus currently references CVE-2026-5286, 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.