CentOS Linux 7 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-utils (CENTOS7:CLSA-2026:1790640190)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1790640190 advisory. - Cyrus IMAP before 3.4.2 allows remote attackers to cause a denial of service multiple-minute daemon hang via input that is mishandled during...

AlmaLinux 9.2 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1790974923)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790974923 advisory. - An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user wi...

AlmaLinux 9.2 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc (ALMALINUX9.2:CLSA-2026:1790963865)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1790963865 advisory. - An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a...

AlmaLinux 9.6 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790173408)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790173408 advisory. - An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user wi...

Rocky Linux 9.6 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1790173408)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1790173408 advisory. - An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user...

AlmaLinux 9.2 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc (ALMALINUX9.2:CLSA-2026:1779119949)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1779119949 advisory. - Cyrus IMAP before 3.8.3 and 3.10.x before 3.10.0-rc1 allows authenticated attackers to cause unbounded memory allocation by sending many...

CentOS Linux 8.4 [TuxCare] Security Update: cyrus-imapd / cyrus-imapd-devel / cyrus-imapd-doc-extra / etc (CENTOS8.4:CLSA-2026:1790758129)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1790758129 advisory. - An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a...

[SECURITY] Fedora 44 Update: cyrus-imapd-3.12.4-1.fc44

The Cyrus IMAP Internet Message Access Protocol server provides access to personal mail, system-wide bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP, NNTP, CalDAV and CardDAV protocols. The Cyrus IMAP server is a scalable enterprise groupware system designed for use from...

[SECURITY] Fedora 45 Update: cyrus-imapd-3.12.4-1.fc45

The Cyrus IMAP Internet Message Access Protocol server provides access to personal mail, system-wide bulletin boards, news-feeds, calendar and contacts through the IMAP, JMAP, NNTP, CalDAV and CardDAV protocols. The Cyrus IMAP server is a scalable enterprise groupware system designed for use from...

SUSE CVE-2026-61908

An issue was discovered in Cyrus IMAP before 3.12.4. A JMAP email-header blob ID can reference an out-of-bounds index. An authenticated user could attempt to download a crafted JMAP blob ID of the form H-, which could read past the end of the internal blobheaders array during download, exposing...

SUSE CVE-2026-61909

An issue was discovered in Cyrus IMAP before 3.12.4. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to another user's calendar or address book could read even unshared events or contacts by including the target hrefs in a calendar-multiget or...

SUSE CVE-2026-61910

An issue was discovered in Cyrus IMAP before 3.12.4. Mailbox/set let a sharee change a special-use role on shared mailboxes. An authenticated user with maySetKeywords on another user's mailbox could change that mailbox's specialuse annotation. This could allow the sharee to change the shared...

SUSE CVE-2026-61911

An issue was discovered in Cyrus IMAP before 3.12.4. There is a Sieve mailbox existence oracle. An authenticated user could install a Sieve script that probed whether another user's private mailbox existed, or read the value of shared mailbox annotations, by observing which fileinto branch fired...

SUSE CVE-2026-61915

An issue was discovered in Cyrus IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker with a PATCH containing PATCH-ACTION="BYPARAM@..." against a resource with two or more properties of the matched kind. The memory holding th...

SUSE CVE-2026-61907

An issue was discovered in Cyrus IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An authenticated user with insert permissions on another user's snoozed mailbox could cause insertion of mail to that user's inbox, or any other of their mailboxes whose id was known to the user...

Linux Distros Unpatched Vulnerability : CVE-2026-61915

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 IMAP before 3.12.4. There is a VPATCH BYPARAM double-free. An authenticated calendar user could crash a Cyrus CalDAV worker wit...

Linux Distros Unpatched Vulnerability : CVE-2026-61911

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 IMAP before 3.12.4. There is a Sieve mailbox existence oracle. An authenticated user could install a Sieve script that probed...

Linux Distros Unpatched Vulnerability : CVE-2026-61910

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 IMAP before 3.12.4. Mailbox/set let a sharee change a special-use role on shared mailboxes. An authenticated user with...

Linux Distros Unpatched Vulnerability : CVE-2026-61908

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 IMAP before 3.12.4. A JMAP email-header blob ID can reference an out-of- bounds index. An authenticated user could attempt to...

Linux Distros Unpatched Vulnerability : CVE-2026-61907

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 IMAP before 3.12.4. JMAP snooze bypasses the destination-mailbox ACL. An authenticated user with insert permissions on another...