Bug 2374565 (CVE-2025-6427) - CVE-2025-6427 firefox: connect-src Content Security Policy restriction could be bypassed
Summary: CVE-2025-6427 firefox: connect-src Content Security Policy restriction could ...
Keywords:
Status: NEW
Alias: CVE-2025-6427
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-06-24 13:01 UTC by OSIDB Bzimport
Modified: 2025-09-01 08:28 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
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Description OSIDB Bzimport 2025-06-24 13:01:46 UTC 
An attacker was able to bypass the `connect-src` directive of a Content Security Policy by manipulating subdocuments. This would have also hidden the connections from the Network tab in Devtools. This vulnerability affects Firefox < 140.
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