CVE ID:	CVE-2020-26976
Description:	When a HTTPS pages was embedded in a HTTP page, and there was a service worker registered for the former, the service worker could have intercepted the request for the secure page despite the iframe not being a secure context due to the (insecure) framing. This vulnerability affects Firefox < 84.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2020-26976 Debian Security Information: DSA-4840 (Google Search) https://www.debian.org/security/2021/dsa-4840 Debian Security Information: DSA-4842 (Google Search) https://www.debian.org/security/2021/dsa-4842 https://security.gentoo.org/glsa/202102-02 https://bugzilla.mozilla.org/show_bug.cgi?id=1674343 https://bugzilla.mozilla.org/show_bug.cgi?id=1674343 https://www.mozilla.org/security/advisories/mfsa2020-54/ https://www.mozilla.org/security/advisories/mfsa2020-54/ https://lists.debian.org/debian-lts-announce/2021/02/msg00001.html https://lists.debian.org/debian-lts-announce/2021/02/msg00002.html