Fedora 44 : cyrus-imapd (2026-740bc1c6fa)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-740bc1c6fa advisory. - New version 3.12.4 rhbz2500822 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus...

Fedora 43 : cyrus-imapd (2026-97a7ec5786)

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-97a7ec5786 advisory. - New version 3.10.4 rhbz2500822 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus...

Fedora 45 : cyrus-imapd (2026-3bf3e31ef4)

The remote Fedora 45 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3bf3e31ef4 advisory. - New version 3.12.4 rhbz2500822 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus...

Astra Linux – Vulnerability in cyrus-sasl2

In Cyrus SASL 2.1.17 through 2.1.27 up to 2.1.28, the plugins/sql.c file does not escape the password used in SQL INSERT or UPDATE statements...

Astra Linux – Vulnerability in mongo-c-driver

The Cyrus SASL integration of the MongoDB C Driver performs unsafe string copying during username canonicalization, allowing a heap buffer overflow before any authentication or network traffic occurs. This can be triggered by passing untrusted input as the username in a MongoDB URI with...

CVE-2026-61911

A flaw was found in cyrus-imapd. An authenticated user could install a Sieve script to determine if another user's private mailbox exists. This is achieved by observing the behavior of the fileinto branch during Local Mail Transfer Protocol LMTP delivery. Additionally, this method could allow the...

CVE-2026-61910

A flaw was found in cyrus-imapd. An authenticated user with specific permissions on another user's mailbox could alter its special-use annotation. This manipulation might allow the user to change the shared mailbox's role, potentially causing unintended mail content to be written to it and shared...

CVE-2026-61908

A flaw was found in cyrus-imapd. An authenticated user could exploit this vulnerability by attempting to download a specially crafted JMAP JSON Meta Application Protocol blob ID. This action could lead to reading beyond the intended memory boundary, potentially exposing sensitive information from...

CVE-2026-61915

A flaw was found in cyrus-imapd. An authenticated calendar user could trigger a double-free vulnerability in the Cyrus CalDAV worker. By sending a specially crafted PATCH request that includes PATCH-ACTION="BYPARAM@..." against a resource with two or more properties of the matched kind, the memor...

CVE-2026-61909

A flaw was found in cyrus-imapd. An authenticated DAV Distributed Authoring and Versioning user with some shared access to another user's calendar or address book could read unshared events or contacts. This information disclosure occurs by including specific resource identifiers in a...

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-2026-61911

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-2026-61909

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. CalDAV/CardDAV multiget bypasses a per-href ACL. An authenticated DAV user with some shared access to anoth...

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-2026-61915

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-2026-61907

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...

DEBIAN-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...

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...

DEBIAN-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...

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...