OPENSUSE-SU-2026:21929-1 Security update for cyrus-imapd

This update for cyrus-imapd fixes the following issues: Changes in cyrus-imapd: Update to 3.8.8 bugfix release: - CVE-2026-61907: JMAP snooze bypasses destination-mailbox ACL bsc1279908 - CVE-2026-61908: JMAP email-header blob ID out-of-bounds index bsc1279975 - CVE-2026-61909: CalDAV/CardDAV...

PT-2026-97063

Name of the Vulnerable Software and Affected Versions cPanel/WHM versions 120 through 11.133.x cPanel/WHM versions 11.134.0 through 11.134.0.56 cPanel/WHM versions 11.136.0 through 11.136.0.40 cPanel/WHM versions 11.138.0 through 11.138.0.7 WP2 versions prior to 11.138.1.11 Description Remote...

Duplicate Advisory: Vikunja: CalDAV and feeds BasicAuth endpoints have no rate limit, bypassing the anti-brute-force floor on account passwords

Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-m469-88xx-8rx2. This link is maintained to preserve external references. Original Description Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate...

CVE-2026-91973

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

CVE-2026-91973 Vikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuth

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

CVE-2026-91973

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

CVE-2026-91973 Vikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuth

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

CVE-2026-91973

Vikunja before 2.6.0 is affected by an authentication bypass in its CalDAV BasicAuth endpoints , which lack rate limiting. Remote unauthenticated attackers can issue unbounded credential-guessing requests against the /dav, /.well-known, and /feeds routes, bypassing the instance's anti-brute-force...

CVE-2026-91973 Vikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuth

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

CVE-2026-91973: Improper Restriction of Excessive Authentication Attempts

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's...

PT-2026-92092

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.6.0 Description An authentication bypass exists in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can perform unbounded credential-guessing requests against the '/dav...

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...

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-2026-61909

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-2026-61915

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...

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...

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...

DEBIAN-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...