Linux · SUSE Linux Enterprise · Security advisory · June 19, 2026
SUSE-SU-2026:22185-1: dovecot24 security update
SUSE-SU-2026:22185-1, released June 19, 2026, fixes 5 CVEs in dovecot24 (version 2.4.4-160000.1.1). None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
5
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0062
50th percentile
Priority of the 5 CVEs
Patch now 0
Urgent 1
High 1
Routine 3
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| dovecot24 | sles 16.0 | 2.4.4-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-27851 | dovecot24: lib-var-expand: safe filter leaks to all following pipelines (bsc#1265146). | 9.1 | 0.0041 | None reported |
| High | CVE-2026-42006 | dovecot: An attacker can cause uncontrolled memory usage with excessive bracing over IMAP | 7.5 | 0.0062 | None reported |
| Routine | CVE-2026-40016 | dovecot23: Sieve :contains/:matches O(NxM) substring match bypasses sieve_max_cpu_time limit (bsc#1265148). | 6.5 | 0.0034 | None reported |
| Routine | CVE-2026-40020 | dovecot23: IMAP folders can be shared-spammed to everyone (bsc#1265149). | 4.3 | 0.0026 | None reported |
| Routine | CVE-2026-33603 | dovecot23: login: base64 input can contain tabs that bypass IPC protection (bsc#1265147). | 5.3 | 0.0021 | None reported |
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