Security researcher Muneaki Nishimura reported that Content Security Policy (CSP) violation reports contained full path information for cross-origin iframe navigations in violation of the CSP specification. This could result in information disclosure. External Reference: https://www.mozilla.org/security/announce/2016/mfsa2016-18.html Acknowledgements: Name: the Mozilla project Upstream: Muneaki Nishimura Statement: This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5, 6 and 7.