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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. There is heap exposure in nested MIME comment parsing. An authenticated IMAP user could craft an email message containing an RFC 822 comment ending with a backslash. When parsing the message, the server would read past the message's end in memory, and read into the heap, returning the read content to the user.

CVE-2026-47088 describes a heap buffer over-read vulnerability (CWE-126) in the Cyrus IMAP server up to version 3.12.2. The flaw occurs when parsing nested MIME comments in email messages crafted by an authenticated IMAP user. Specifically, if an RFC 822 comment ends with a backslash, the parser reads past the end of the message buffer into heap memory, potentially exposing sensitive data from the heap to the attacker. The vulnerability requires network access, low privileges (authenticated user), and has high attack complexity. No integrity or availability impact is indicated.

Detailed information about CVE-2026-47088: CWE-126 Buffer Over-read in cyrusimap Cyrus IMAP affecting cyrusimap Cyrus IMAP. Get real-time updates, technical det

CVE-2026-47088: CWE-126 Buffer Over-read in cyrusimap Cyrus IMAP - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-47088: CWE-126 Buffer Over-read 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-2026-47088: CWE-126 Buffer Over-read in cyrusimap Cyrus IMAPCVE-2026-47088 0 An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is heap exposure in nested MIME comment parsing. An authenticated IMAP user could craft an email message containing an RFC 822 comment ending with a backslash. When parsing the message, the server would read past the message's end in memory, and read into the heap, returning the read content to the user. LowVulnerability#cve #cve-2026-47088 #cwe-126 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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