CVE-2026-114471
CVE-2026-114471 · Insertion of Sensitive Information into Log File in hMailServer
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Insertion of sensitive information into a log file in the SMTP server of Progressive Robot hMailServer 6.0.0 through 6.3.6 allows a local user who can read the server's log, or anyone given a copy of it, to obtain credentials. With SMTP logging enabled, the server hid the credential of an AUTH PLAIN command only when it was sent after EHLO in one exact form, and wrote the rest of the SASL exchange as the client sent it: a PLAIN password sent before EHLO or with extra spacing, the OAuth 2.0 bearer token of AUTH XOAUTH2 and AUTH OAUTHBEARER (from 6.2.0), the SCRAM-SHA-256 client proof (from 6.2.0), which with the logged salt and iteration count allows offline password guessing, and the GSSAPI authenticator (from 6.3.2). SMTP logging is off by default; on Windows before 6.3.6 the log folder was readable by every local user.
CVSS 4.7 · Medium · EPSS 0.1%
- Published
- Updated
Affected products and versions
hmailserver
- Versions
- ≥ 6.0.0, ≤ 6.3.6: Affected (semver)
No fix published