PT-2026-60554 · Cyrusimap · Cyrus Imap

CVE-2026-47086 · Published 2026-07-16 · Updated 2026-07-16

NVD

CVSS v3.1

3.5

Low

Base vector

AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N

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.

Fix

Incorrect Authorization

Weakness Enumeration

CWE-863

Related Identifiers

CVE-2026-47086

Affected Products

Cyrus Imap

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-47086 · Security Note
• https://cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html · Note
• https://cyrusimap.org/imap/download/release-notes/index.html · Note