An issue was discovered in Mutt before 1.10.1 and NeoMutt before 2018-07-16. imap/util.c mishandles ".." directory traversal in a mailbox name.
https://github.com/neomutt/neomutt/commit/57971dba06346b2d7179294f4528b8d4427a7c5d
https://gitlab.com/muttmua/mutt/commit/31eef6c766f47df8281942d19f76e35f475c781d
https://lists.debian.org/debian-lts-announce/2018/08/msg00001.html
https://neomutt.org/2018/07/16/release
https://security.gentoo.org/glsa/201810-07
Source: MITRE
Published: 2018-07-17
Updated: 2020-05-20
Type: CWE-22
Base Score: 5
Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 10
Severity: MEDIUM
Base Score: 5.3
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 3.9
Severity: MEDIUM