Linux · SUSE Linux Enterprise · Security advisory · April 16, 2026
SUSE-SU-2026:21208-1: dovecot24 security update
SUSE-SU-2026:21208-1, released April 16, 2026, fixes 10 CVEs in dovecot24 (version 2.4.3-160000.1.1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
10
None rated Critical
Exploited
0
None reported
Highest CVSS
8.2
Base score, 0 to 10
Highest EPSS
0.0080
57th percentile
Priority of the 10 CVEs
Patch now 0
Urgent 0
High 5
Routine 5
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| dovecot24 | sles 16.0 | 2.4.3-160000.1.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-27858 | dovecot23: pigeonhole: managesieve-login can allocate large amount of memory during authentication (bsc#1260901). | 7.5 | 0.0080 | None reported |
| High | CVE-2025-59032 | dovecot23: pigeonhole: ManageSieve panic occurs with sieve-connect as a client (bsc#1260902). | 7.5 | 0.0073 | None reported |
| High | CVE-2026-27857 | dovecot23: sending excessive parenthesis causes imap-login to use excessive memory (bsc#1260898). | 7.5 | 0.0068 | None reported |
| High | CVE-2025-59028 | dovecot23: Invalid base64 authentication can cause DoS for other logins (bsc#1260894). | 7.5 | 0.0046 | None reported |
| High | CVE-2026-24031 | dovecot24: SQL injection possible if auth_username_chars is configured empty | 8.2 | 0.0040 | None reported |
| Routine | CVE-2026-27856 | dovecot23: Doveadm credentials were not checked using timing-safe checking function (bsc#1260899). | 5.9 | 0.0040 | None reported |
| Routine | CVE-2026-27859 | dovecot23: excessive RFC 2231 MIME parameters in email would can excessive CPU usage (bsc#1260897). | 5.3 | 0.0038 | None reported |
| Routine | CVE-2026-27855 | dovecot23: OTP driver vulnerable to replay attack (bsc#1260900). | 5.9 | 0.0032 | None reported |
| Routine | CVE-2026-27860 | dovecot24: LDAP query injection possible if auth_username_chars is configured empty | 5.3 | 0.0030 | None reported |
| Routine | CVE-2025-59031 | dovecot23: decode2text.sh OOXML extraction may follow symlinks and read unintended files during indexing | 4.3 | 0.0029 | None reported |
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