[El-errata] ELSA-2026-79371 Important: Oracle Linux 10 dovecot security update

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-79371

http://linux.oracle.com/errata/ELSA-2026-79371.html

The following updated rpms for Oracle Linux 10 have been uploaded to the Unbreakable Linux Network:

x86_64:
dovecot-2.3.21-19.el10_2.8.x86_64.rpm
dovecot-devel-2.3.21-19.el10_2.8.x86_64.rpm
dovecot-mysql-2.3.21-19.el10_2.8.x86_64.rpm
dovecot-pgsql-2.3.21-19.el10_2.8.x86_64.rpm
dovecot-pigeonhole-2.3.21-19.el10_2.8.x86_64.rpm

aarch64:
dovecot-2.3.21-19.el10_2.8.aarch64.rpm
dovecot-devel-2.3.21-19.el10_2.8.aarch64.rpm
dovecot-mysql-2.3.21-19.el10_2.8.aarch64.rpm
dovecot-pgsql-2.3.21-19.el10_2.8.aarch64.rpm
dovecot-pigeonhole-2.3.21-19.el10_2.8.aarch64.rpm


SRPMS:
http://oss.oracle.com/ol10/SRPMS-updates/dovecot-2.3.21-19.el10_2.8.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:

[1:2.3.21-19.8]
- fix CVE-2026-33605: ManageSieve: denial of service via lone CR
  character causing protocol deadlock (RHEL-251984)

[1:2.3.21-19.7]
- fix CVE-2026-42007: fix use-after-free and info leak in sieve
  editheader extension (RHEL-251945)

[1:2.3.21-19.6]
- fix CVE-2026-40018: incorrect escaping of multi-byte strings in SQL commands (RHEL-252058)

[1:2.3.21-19.5]
- fix CVE-2026-42391: fix excessive memory growth with pre-login ID
  command (RHEL-252072)

[1:2.3.21-19.4]
- fix CVE-2026-73208: OAuth2 scope check requires all configured scopes, add oauth2_audience setting (RHEL-251900)

[1:2.3.21-19.3]
- fix CVE-2026-27852: limit parsed message data to prevent memory exhaustion (RHEL-251564)

[1:2.3.21-19.2]
- fix CVE-2026-33263: submission-login epoll panic at
  mail_max_userip_connections limit (RHEL-251917)