Security Advisory

CVE-2023-34415

CVE vulnerability detail — eXtreme Datacenter Security Operations

Published 2023-06-19 10:40:49

Last updated 2025-02-13 16:55:31

Assigner mozilla

State PUBLISHED

Description

When choosing a site-isolated process for a document loaded from a data: URL that was the result of a redirect, Firefox would load that document in the same process as the site that issued the redirect. This bypassed the site-isolation protections against Spectre-like attacks on sites that host an "open redirect". Firefox no longer follows HTTP redirects to data: URLs. This vulnerability affects Firefox < 114.

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