RLSA-2026:13498

Source
https://errata.rockylinux.org/RLSA-2026:13498
Import Source
https://storage.googleapis.com/resf-osv-data/RLSA-2026:13498.json
JSON Data
https://api.osv.dev/v1/vulns/RLSA-2026:13498
Upstream
  • CVE-2025-59032
  • CVE-2026-27857
  • CVE-2026-27858
Published
2026-05-06T12:05:16.751656Z
Modified
2026-05-06T12:30:28.711043Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Important: dovecot security update
Details

Dovecot is an IMAP server for Linux and other UNIX-like systems, written primarily with security in mind. It also contains a small POP3 server, and supports e-mail in either the maildir or mbox format. The SQL drivers and authentication plug-ins are provided as subpackages.

Security Fix(es):

  • dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command (CVE-2025-59032)

  • dovecot: denial of service via crafted message before authentication (CVE-2026-27858)

  • dovecot: denial of service via specially crafted NOOP command (CVE-2026-27857)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References
Credits
    • Rocky Enterprise Software Foundation
    • Red Hat

Affected packages

Rocky Linux:10 / dovecot

Package

Name
dovecot
Purl
pkg:rpm/rocky-linux/dovecot?distro=rocky-linux-10&epoch=1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:2.3.21-16.el10_1.1
Database specific
{
    "yum_repository": "AppStream"
}

Database specific

source
"https://storage.googleapis.com/resf-osv-data/RLSA-2026:13498.json"