CVE-2026-15775: Insufficient policy enforcement in V8 on 2026-07-05
Chromium: CVE-2026-15775 Insufficient policy enforcement in V8
Other sources
Inappropriate implementation in V8 in Google Chrome prior to 150.0.7871.125 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: High)
— NVD
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
Credit
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 150.0.4078.80 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 150.0.7871.124 - Upgrade
Upgrade
Chromium-based browsers (V8)to a version that resolves this vulnerability.Fixed in 150.0.7871.125 - Compensating control
Apply defense-in-depth by restricting cross-origin access at the application layer (e.g., ensure sensitive endpoints enforce their own CORS/origin checks) to reduce impact of any same-origin policy bypass.
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the severity of CVE-2026-15775?
CVE-2026-15775 has a medium severity rating of 6.5 based on the CVSS 3.1 metric.
How do I fix CVE-2026-15775?
To fix CVE-2026-15775, update Google Chrome to version 150.0.7871.125 or later.
What type of vulnerability is CVE-2026-15775?
CVE-2026-15775 is classified as an insufficient policy enforcement vulnerability in V8 used by Google Chrome.
Can CVE-2026-15775 affect users of Microsoft Edge?
Yes, CVE-2026-15775 can also affect users of Microsoft Edge since it is based on Chromium.
What is the impact of CVE-2026-15775?
CVE-2026-15775 allows remote attackers to bypass the same-origin policy via a crafted HTML page.