{"action":"Upgrade znuny to 6.5.13-1 or later.","affected":[{"fixed":"6.5.13-1","introduced":"0"}],"component":"znuny","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.5.13-1"],"id":"tcs_01M5NN7YCQZPVE7876YXNWE3ZB","modified_at":"2026-09-01T20:05:45.050850907Z","published_at":"2025-05-08T16:15:25.263Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-26842","https://security-tracker.debian.org/tracker/CVE-2025-26842"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-26842#Debian:13/znuny","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-26842"}],"summary":"An issue was discovered in Znuny through 7.1.3. If access to a ticket is not given, the content of S/MIME encrypted e-mail messages is visible to users with access to the CommunicationLog."}