vulnti.work

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder nam…

Medium CVSS 4.3
CVECVE-2026-47083
First seen2026-07-17 19:16 UTC
Disclosed2026-07-16 19:16 UTC
Last updated2026-07-17 19:16 UTC
Channel statusauto

Summary

An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. There is an ESEARCH cross-user content oracle. By using the ESEARCH command, an authenticated IMAP user could enumerate folder names under any account they could name. Search would return UIDs of messages matching the search, creating a content oracle (without allowing arbitrary reads of the target's content).

In-depth triage · Auto channel

No in-depth report has been generated yet (DR-003 v2 AI pipeline is under construction).

Lint boundary warnings (2)

The following non-blocking warnings were raised during the lint phase of this triage (e.g. reference URLs not yet on the allowlist). They do not affect entry usability and are disclosed for transparency (see DR-002).

  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://www.cyrusimap.org/3.12/imap/download/release-notes/3.12/x/3.12.3.html
  • REF_URL_NOT_ALLOWLISTED url not in allowlist: https://www.cyrusimap.org/imap/download/release-notes/index.html

Sources

  • NVD DATABASE

Original Links

Timeline

  1. nvd_ingest NVD