RockyLinux 9 : dovecot (RLSA-2026:41905)

The remote RockyLinux 9 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:41905 advisory. dovecot: Dovecot: Denial of Service via excessive IMAP bracing CVE-2026-42006 Tenable has extracted the preceding description block directly from the RockyLinux...

AlmaLinux 9 : dovecot (ALSA-2026:41905)

The remote AlmaLinux 9 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:41905 advisory. dovecot: Dovecot: Denial of Service via excessive IMAP bracing CVE-2026-42006 Tenable has extracted the preceding description block directly from the AlmaLinux...

Oracle Linux 9 : dovecot (ELSA-2026-41905)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-41905 advisory. 1:2.3.16-18.1 - fix CVE-2026-42006: IMAP parser listcountlimit bypass via open parentheses RHEL-188468 Tenable has extracted the preceding description block...

Important: Red Hat Security Advisory: dovecot security update

An update for dovecot is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available fo...

Important: Red Hat Security Advisory: dovecot security update

An update for dovecot is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from...

dovecot: Dovecot: Denial of Service via excessive IMAP bracing

A flaw was found in Dovecot. A remote attacker can exploit this vulnerability by sending excessive open braces over the Internet Message Access Protocol IMAP, leading to uncontrolled memory usage. This can cause the affected system to consume memory up to its configured limit, resulting in a Deni...

RHEL 10 : dovecot (RHSA-2026:42091)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2026:42091 advisory. 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...

TencentOS Server 3: ruby:3.3 (TSSA-2026:0657)

The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the TSSA-2026:0657 advisory. Package updates are available for TencentOS Server 3 that fix the following vulnerabilities...

Oracle Linux 10 : dovecot (ELSA-2026-41988)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-41988 advisory. 1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477 Tenable has extracted the preceding description block directly...

ALSA-2026:41988 Important: dovecot security update

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 Fixes: doveco...

dovecot security update

1:2.3.21-19.1 - fix CVE-2026-42006: fix imapparser listcountlimit to actually work RHEL-188477...

Oracle Linux 10 : ruby4.0 (ELSA-2026-20606)

The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-20606 advisory. - Fix Net::IMAP ResponseReader quadratic complexity vulnerability CVE-2026-42245 Includes core fix plus additional performance optimizations Resolves...

Linux Distros Unpatched Vulnerability : CVE-2026-47086

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. GENURLAUTH-issued tokens can bypass ACLs. Any authenticated user could mint a URLAUTH token...

SUSE SLED15: libruby3_4-3_4 / ruby3.4 / ruby3.4-devel / ruby3.4-devel-extra / etc (SUSE-SU-2026:3090-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3090-1 advisory. This update for ruby3.4 fixes the following issues - CVE-2026-42258: Net:IMAP: Command Injection via Symbol...

SUSE CVE-2026-47081

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an XAPPLEPUSHSERVICE folder existence oracle and push hijack. An authenticated IMAP user could probe for the existence of arbitrary mailboxes on other users' accounts via the XAPPLEPUSHSERVICE command and then create...

SUSE CVE-2026-47082

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. The vacation "fcc" feature skips the destination-mailbox ACL. A user whose vacation Sieve script used :fcc to save a copy of the sent message could deliver vacation auto-reply copies into any mailbox the script could name,...

SUSE CVE-2026-47083

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search,...

SUSE CVE-2026-47084

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. The LOCALDELETE command bypassed ACL checks. An authenticated but non-admin user could invoke the admin-only LOCALDELETE IMAP command and delete mailboxes for which they had no permissions...

SUSE CVE-2026-47086

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. GENURLAUTH-issued tokens can bypass ACLs. Any authenticated user could mint a URLAUTH token via the GENURLAUTH command for any mailbox they could name, even without read access on it. This would allow reading mail from mailboxes...

SUSE CVE-2026-47087

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. URLAUTH does not honor revoked authorizer access. A URLAUTH URL minted while the authorizer had access continued to work after that access was revoked...