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CVE-2020-26978

🗓️ 07 Jan 2021 13:51:36Reported by Alpine Linux Development TeamType 
alpinelinux
 alpinelinux🔗 security.alpinelinux.org👁 53 Views

Using techniques based on slipstream research, a malicious webpage could expose internal network hosts and local machine services. Vulnerable versions include Firefox < 84, Thunderbird < 78.6, and Firefox ESR < 78.6

Related
Packages
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities in Mozilla Firefox affect IBM Cloud Pak for Multicloud Management Monitoring
18 May 202111:41
–ibm
IBM Security Bulletins		Security Bulletin: Multiple vulnerabilities of Mozilla Firefox (less than Firefox 78.9.0 ESR +  CVE-2020-26974) have affected Synthetic Playback Agent 8.1.4.0-8.1.4 IF13 + CP4MCM2.2
12 May 202102:48
–ibm
ALT Linux		Security fix for the ALT Linux 10 package thunderbird version 78.6.0-alt1
15 Dec 202000:00
–altlinux
ALT Linux		Security fix for the ALT Linux 10 package firefox-esr version 78.6.0-alt1
14 Dec 202000:00
–altlinux
Tenable Nessus		Amazon Linux 2 : thunderbird (ALAS-2021-1586)
7 Jan 202100:00
–nessus
Tenable Nessus		CentOS 8 : firefox (CESA-2020:5562)
1 Feb 202100:00
–nessus
Tenable Nessus		CentOS 7 : firefox (RHSA-2020:5561)
9 Oct 202400:00
–nessus
Tenable Nessus		CentOS 7 : thunderbird (RHSA-2020:5618)
22 Dec 202000:00
–nessus
Tenable Nessus		Debian DLA-2496-1 : firefox-esr security update
17 Dec 202000:00
–nessus
Tenable Nessus		Debian DLA-2497-1 : thunderbird security update
18 Dec 202000:00
–nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Alpine Linux3.12anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.13anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.14anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.15anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.16anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.17anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.18anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.19anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.20anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Alpine Linux3.21anyfirefox84.0.1-r0firefox-84.0.1-r0.apk
Rows per page

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17 Jun 2026 03:08Current
6.9Medium risk
Vulners AI Score6.9
CVSS 25.8
CVSS 3.16.1
EPSS0.01266
slipstream researchmalicious webpageinternal networklocal machinefirefoxthunderbirdfirefox esr
53