Linux · 
openSUSE Leap · Security advisory · June 19, 2026
openSUSE Leap · Security advisory · June 19, 2026OPENSUSE-SU-2026:21109-1: dovecot24 security update
OPENSUSE-SU-2026:21109-1, 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 | opensuse-leap 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 |
Showing 1 to 5 of 5
1
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.