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cyrus-imapd

A security update for cyrus-imapd addresses multiple vulnerabilities including folder existence oracle, cross-user content oracle, ACL bypasses, token forgery, heap exposure, and privilege escalation issues. These vulnerabilities are fixed in version 3.8.7, a bugfix release. The issues affect various aspects of access control and token validation in the software.

The cyrus-imapd update to version 3.8.7 fixes several security issues identified by CVE identifiers CVE-2026-47081 through CVE-2026-47089. These include an XAPPLEPUSHSERVICE folder existence oracle and push hijack, an ESEARCH cross-user content oracle, ACL bypasses in vacation 'fcc' and LOCALDELETE operations, URLAUTH token forgery and ACL bypasses, heap exposure in nested MIME comment parsing, and improper access control in LISTRIGHTS. The update addresses these vulnerabilities to improve the security posture of the cyrus-imapd mail server.

Detailed information about Security update for cyrus-imapd affecting SUSE Product Security Team SUSE. Get real-time updates, technical details, and mitigation s

Security update for cyrus-imapd - Live Threat Intelligence - Threat Radar | OffSeq.com

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SUSE CVE CVE-2026-47081 page

SUSE CVE CVE-2026-47082 page

SUSE CVE CVE-2026-47083 page

SUSE CVE CVE-2026-47084 page

SUSE CVE CVE-2026-47085 page

SUSE CVE CVE-2026-47086 page

SUSE CVE CVE-2026-47087 page

SUSE CVE CVE-2026-47088 page

SUSE CVE CVE-2026-47089 page

Security update for cyrus-imapd

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 despite having no granted permissions.

CVE-2026-47086 describes an incorrect authorization issue (CWE-863) in Cyrus IMAP versions up to 3.12.2. The flaw allows any authenticated user to mint URLAUTH tokens using the GENURLAUTH command for arbitrary mailbox names, even if they lack read access to those mailboxes. This bypasses ACL protections and permits unauthorized reading of mailbox contents. The vulnerability has a CVSS 3.1 base score of 3.5, indicating low severity, with attack vector network, high attack complexity, low privileges required, no user interaction, and limited confidentiality impact. No official patch or remediation has been documented in the provided data.

Detailed information about CVE-2026-47086: CWE-863 Incorrect Authorization in cyrusimap Cyrus IMAP affecting cyrusimap Cyrus IMAP. Get real-time updates, techni

CVE-2026-47086: CWE-863 Incorrect Authorization in cyrusimap Cyrus IMAP - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-47086: CWE-863 Incorrect Authorization in cyrusimap Cyrus IMAP


Security update for cyrus-imapdCVE-2026-47081 0 A security update for cyrus-imapd addresses multiple vulnerabilities including folder existence oracle, cross-user content oracle, ACL bypasses, token forgery, heap exposure, and privilege escalation issues. These vulnerabilities are fixed in version 3.8.7, a bugfix release. The issues affect various aspects of access control and token validation in the software. MediumVulnerability#gcve #csaf #cve-2026-47081 Join the discussion	GCVE Database	07/17/2026, 15:44:26 UTC Added: 09/17/2026, 01:59:06 UTC
CVE-2026-47086: CWE-863 Incorrect Authorization in cyrusimap Cyrus IMAPCVE-2026-47086 0 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 despite having no granted permissions. LowVulnerability#cve #cve-2026-47086 #cwe-863 Join the discussion	CVE Database V5	07/16/2026, 00:00:00 UTC Added: 07/16/2026, 18:48:09 UTC

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