[El-errata] ELSA-2026-80825 Important: Oracle Linux 9 dovecot security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-80825

http://linux.oracle.com/errata/ELSA-2026-80825.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
dovecot-2.3.16-18.el9_8.8.i686.rpm
dovecot-2.3.16-18.el9_8.8.x86_64.rpm
dovecot-devel-2.3.16-18.el9_8.8.i686.rpm
dovecot-devel-2.3.16-18.el9_8.8.x86_64.rpm
dovecot-mysql-2.3.16-18.el9_8.8.x86_64.rpm
dovecot-pgsql-2.3.16-18.el9_8.8.x86_64.rpm
dovecot-pigeonhole-2.3.16-18.el9_8.8.x86_64.rpm

aarch64:
dovecot-2.3.16-18.el9_8.8.aarch64.rpm
dovecot-devel-2.3.16-18.el9_8.8.aarch64.rpm
dovecot-mysql-2.3.16-18.el9_8.8.aarch64.rpm
dovecot-pgsql-2.3.16-18.el9_8.8.aarch64.rpm
dovecot-pigeonhole-2.3.16-18.el9_8.8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/dovecot-2.3.16-18.el9_8.8.src.rpm

Related CVEs:

CVE-2026-27852
CVE-2026-33263
CVE-2026-33605
CVE-2026-40018
CVE-2026-40019
CVE-2026-42007
CVE-2026-42391
CVE-2026-73208




Description of changes:

[1:2.3.16-18.8]
- fix CVE-2026-33605: ManageSieve protocol denial of service via
  lone CR character (RHEL-251989)

[1:2.3.16-18.7]
- fix CVE-2026-42007: use-after-free in pigeonhole editheader
  (RHEL-251952)

[1:2.3.16-18.6]
- fix CVE-2026-40018: incorrect escaping of multi-byte strings in SQL commands (RHEL-252068)

[1:2.3.16-18.5]
- fix CVE-2026-42391: excessive memory growth with pre-login IMAP ID
  command (RHEL-251936)

[1:2.3.16-18.4]
- fix CVE-2026-73208: OAuth2 scope check requires all configured scopes, add oauth2_audience setting (RHEL-251911)

[1:2.3.16-18.3]
- fix CVE-2026-27852: limit parsed message data to prevent memory
  exhaustion (RHEL-251575)

[1:2.3.16-18.2]
- fix CVE-2026-33263: epoll_ctl panic at
  mail_max_userip_connections limit (RHEL-251929)