CVE-2026-87517: Race Condition
Chromium CVE-2026-87517: Race condition in Mobile
Other sources
Race condition in Mobile in Google Chrome on on iOS prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass web origin policy via a crafted HTML page. (Chromium security severity: High)
— 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 on iOSto a version that resolves this vulnerability.Fixed in 153.0.8010.36
Event History
Frequently Asked Questions
Which users are exposed to this issue?
Users of Google Chrome for iOS running a version earlier than 153.0.8010.36 are affected. Exploitation requires the user to be socially engineered into opening a crafted HTML page.
What security boundary can exploitation bypass?
Successful exploitation can bypass the web origin policy, which is intended to isolate content from different web origins.