CVE-2026-6313: Insufficient policy enforcement in CORS
Chromium: CVE-2026-6313 Insufficient policy enforcement in CORS
Other sources
Insufficient policy enforcement in CORS in Google Chrome prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer process to leak cross-origin data 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
Google Chrome / Chromium (CVE-2026-6313)to a version that resolves this vulnerability.Fixed in 147.0.7727.101
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-8555
- CVE-2026-7906
- CVE-2026-7926
- CVE-2026-7360
- CVE-2026-7355
- CVE-2026-7335
- CVE-2026-11644
- CVE-2026-7910
- CVE-2026-6314
- CVE-2026-6316
- CVE-2026-6312
- CVE-2026-7349
- CVE-2026-6362
- CVE-2026-7908
- CVE-2026-7333
- CVE-2026-10015
- CVE-2026-6317
- CVE-2026-11628
- CVE-2026-3924
- CVE-2026-7341
- CVE-2026-7345
- CVE-2026-7898
- CVE-2026-11643
- CVE-2026-9906
- CVE-2026-10899
- CVE-2026-10972
- CVE-2026-11642
- CVE-2026-10884
- CVE-2026-11638
- CVE-2026-11640
- CVE-2026-10893
- CVE-2026-11629
- CVE-2026-11632
- CVE-2026-10886
- CVE-2026-10902
- CVE-2026-10891
- CVE-2026-10895
- CVE-2026-10898
- CVE-2026-99220
Frequently Asked Questions
What is the severity of CVE-2026-6313?
CVE-2026-6313 is classified as a high severity vulnerability due to insufficient policy enforcement in CORS.
How do I fix CVE-2026-6313?
To fix CVE-2026-6313, update your Google Chrome to version 147.0.7727.101 or later.
Which versions of Google Chrome are affected by CVE-2026-6313?
Google Chrome versions prior to 147.0.7727.101 are affected by CVE-2026-6313.
Can CVE-2026-6313 affect Microsoft Edge?
Yes, Microsoft Edge (Chromium-based) versions before the latest fix can also be affected by CVE-2026-6313.
What type of data leak does CVE-2026-6313 exploit?
CVE-2026-6313 allows remote attackers to leak cross-origin data via a crafted HTML page.