| Name | CVE-2026-33607 |
| Description | An attacker that has valid credentials can use IMAP LIST command to co ... |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| dovecot (PTS) | bullseye | 1:2.3.13+dfsg1-2+deb11u1 | vulnerable |
| bullseye (security) | 1:2.3.13+dfsg1-2+deb11u4 | vulnerable |
| bookworm, bookworm (security) | 1:2.3.19.1+dfsg1-2.1+deb12u6 | vulnerable |
| trixie (security), trixie | 1:2.4.1+dfsg1-6+deb13u6 | vulnerable |
| forky, sid | 1:2.4.4+dfsg1-2 | vulnerable |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| dovecot | source | (unstable) | (unfixed) | | | |
Notes
https://documentation.open-xchange.com/dovecot/security/advisories/html/2026/oxdc-adv-2026-0003.html#cve-2026-33607-dovecot-imap-list-match-sub-exponential-backtracking-%E2%80%94-cpu-denial-of-service