CVE-2026-87619: Medium severity Google Google Chrome vulnerability
Chromium CVE-2026-87619: Observable discrepancy in Prefetch
Other sources
Observable discrepancy in Prefetch in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
— MITRE
This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
— Microsoft
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 153.0.4234.32 - Upgrade
Upgrade
Google Chrome / Chromium-based browsers (Edge)to a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
What does an attacker need to exploit this issue?
The attacker needs to cause a victim to load a crafted HTML page. The issue can then be used remotely to leak cross-origin data through an observable discrepancy in Prefetch.
Which Chrome versions are affected?
Google Chrome versions prior to 153.0.8010.36 are affected. Updating to 153.0.8010.36 or later addresses the affected version range described here.
Is user interaction required?
A victim must load the attacker-crafted HTML page. No additional interaction requirements are stated in the available information.