VYPR
Low severity3.5NVD Advisory· Published Jul 16, 2026· Updated Jul 17, 2026

CVE-2026-47086

CVE-2026-47086

Description

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.

Affected products

2

Patches

Vulnerability mechanics

References

2

News mentions

1