[Webkit-unassigned] [Bug 241318] New: Blob URLs leak data between first parties

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=241318

            Bug ID: 241318
           Summary: Blob URLs leak data between first parties
           Product: WebKit
           Version: Safari 15
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: New Bugs
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: arthuredelstein at gmail.com

Currently, it is possible for third-party scripts under different first parties to share data via a Blob URL.

Please see the test results at https://privacytests.org/ios.html and https://privacytests.org/nightly.html

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