A shared worker created from a "data:" URL in one tab can be shared by another tab with a different origin, bypassing the same-origin policy. This vulnerability affects Firefox < 59.
{ "binaries": [ { "binary_name": "firefox", "binary_version": "59.0+build5-0ubuntu0.14.04.1" }, { "binary_name": "firefox-dev", "binary_version": "59.0+build5-0ubuntu0.14.04.1" }, { "binary_name": "firefox-globalmenu", "binary_version": "59.0+build5-0ubuntu0.14.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "59.0+build5-0ubuntu0.14.04.1" }, { "binary_name": "firefox-testsuite", "binary_version": "59.0+build5-0ubuntu0.14.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "59.0+build5-0ubuntu0.16.04.1" }, { "binary_name": "firefox-dev", "binary_version": "59.0+build5-0ubuntu0.16.04.1" }, { "binary_name": "firefox-globalmenu", "binary_version": "59.0+build5-0ubuntu0.16.04.1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "59.0+build5-0ubuntu0.16.04.1" }, { "binary_name": "firefox-testsuite", "binary_version": "59.0+build5-0ubuntu0.16.04.1" } ], "availability": "No subscription required" }
{ "binaries": [ { "binary_name": "firefox", "binary_version": "59.0.1+build1-0ubuntu1" }, { "binary_name": "firefox-dev", "binary_version": "59.0.1+build1-0ubuntu1" }, { "binary_name": "firefox-globalmenu", "binary_version": "59.0.1+build1-0ubuntu1" }, { "binary_name": "firefox-mozsymbols", "binary_version": "59.0.1+build1-0ubuntu1" }, { "binary_name": "firefox-testsuite", "binary_version": "59.0.1+build1-0ubuntu1" } ], "availability": "No subscription required" }