{"action":"Upgrade dovecot to 1:2.4.5+dfsg1-1 or later.","affected":[{"fixed":"1:2.4.5+dfsg1-1","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:2.4.5+dfsg1-1"],"id":"tcs_01M5NS0G4AF8R2VFK2SVC0VHCM","modified_at":"2026-10-01T03:03:11.977546345Z","published_at":"2026-08-28T12:16:29.887Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-42395","https://security-tracker.debian.org/tracker/CVE-2026-42395"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-42395#Debian:14/dovecot","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-42395"}],"summary":"A host listed as a trusted proxy can send forwarding information containing a NUL byte, which crashes the login process on the following login attempt. The login process is terminated, which can cause"}