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CVE-2026-87574Unrated

Chromium CVE-2026-87574: Information leak in ServiceWorker

MSRC advisory NVD CVE.org

Assessment

This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.

Severity: Unrated
CVSS base score: Not published
Impact: Not stated
EPSS, next 30 days: Not scored yet
Public exploit code: No Nuclei template lists it
Exploitability: Not assessed
Publicly disclosed: No
Customer action: Required: apply the update
Component: Microsoft Edge (Chromium-based)
Weakness: —
Issued by: Chrome
Published: 14 Sep 2026 · September 2026
Last revised: 14 Sep 2026

Updates that fix it

0 KBs

No KB listed

MSRC lists no downloadable update, which usually means a service-side fix or a release-notes update. Check the MSRC advisory.

Affected products

Browser

1 affected product

Microsoft Edge (Chromium-based)

What changed

First observed 14 Oct 2026

14 Oct 2026 Source coverage: msrc-cvrfIncomplete → Current

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