Icinga Icinga Web2 2.0.0 through 2.6.4, 2.7.4 and 2.8.2 has a Directory Traversal vulnerability which allows an attacker to access arbitrary files that are readable by the process running Icinga Web 2. This issue is fixed in Icinga Web 2 in v2.6.4, v2.7.4 and v2.8.2.
https://www.debian.org/security/2020/dsa-4747
https://security.gentoo.org/glsa/202208-05
https://lists.debian.org/debian-lts-announce/2020/08/msg00040.html
https://icinga.com/2020/08/19/icinga-web-security-release-v2-6-4-v2-7-4-and-v2-8-2/
https://github.com/Icinga/icingaweb2/issues/4226
https://github.com/Icinga/icingaweb2/blob/master/CHANGELOG.md
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00026.html