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The implementation of Content Security Policy (CSP) violation reports in Mozilla Firefox 4.x through 5, SeaMonkey 2.x before 2.3, and possibly other products does not remove proxy-authorization credentials from the listed request headers, which allows attackers to obtain sensitive information by reading a report, related to incorrect host resolution that occurs with certain redirects.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Freebsd | — | Upgrade linux-thunderbirdUpgrade firefoxUpgrade thunderbirdUpgrade seamonkeyUpgrade linux-firefox | Dec 10, 2025 | Aug 16, 2011 |
| Gentoo Linux | — | Upgrade net-libs/xulrunner.Upgrade www-client/mozilla-firefox.Upgrade dev-libs/nss.Upgrade www-client/icecat.Upgrade www-client/seamonkey-bin.Upgrade mail-client/mozilla-thunderbird-bin.Upgrade www-client/firefox.Upgrade www-client/firefox-bin.Upgrade www-client/mozilla-firefox-bin.Upgrade www-client/seamonkey.Upgrade mail-client/thunderbird.Upgrade mail-client/mozilla-thunderbird.Upgrade mail-client/thunderbird-bin.Upgrade net-libs/xulrunner-bin. | Oct 30, 2017 | Aug 18, 2011 |
| Mfsa2011 29 | — | Upgrade to Mozilla Firefox version 6.0 | Aug 19, 2011 | Aug 16, 2011 |
| Mozilla Seamonkey | — | Upgrade to Mozilla SeaMonkey version 2.3.0 | Feb 2, 2012 | Aug 18, 2011 |
| Suse | — | Upgrade MozillaFirefox-translations-commonUpgrade MozillaFirefoxUpgrade MozillaFirefox-translationsUpgrade MozillaFirefox-develUpgrade MozillaFirefox-translations-other | Feb 17, 2015 | Jul 9, 2013 |
| Ubuntu | — | Upgrade firefox | Nov 8, 2024 | Aug 18, 2011 |
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