VDB

CVE-2026-24031

CVE-2026-24031 PUBLISHED CVSS 7.699999809265137 HIGH

Dovecot SQL based authentication can be bypassed when auth_username_chars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear auth_username_chars. If this is not possible, install latest fixed version. No publicly available exploits are known.

EPSS 0.03% · 10.7th percentile

Risk Scores

CVSS v3.1
7.699999809265137
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
EPSS Score
0.03%
10.7th percentile

Affected Products

VendorProductVersions
open-xchangedovecot0
Open-Xchange GmbHOX Dovecot Pro0, 0, 0
dovecotdovecot0

Timeline

  • Mar 27, 2026 Coalition ESS Score
  • Mar 27, 2026 CVE Published
  • Mar 27, 2026 PoC Published
  • Mar 27, 2026 PoC Published
  • Mar 27, 2026 CVE Updated
  • Mar 27, 2026 PoC Published
  • Mar 29, 2026 Security Advisory
  • May 18, 2026 EPSS Score
  • May 19, 2026 EPSS Score
  • May 20, 2026 EPSS Score
  • May 21, 2026 EPSS Score
  • May 22, 2026 EPSS Score
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