CVE-2026-114471 Insertion of Sensitive Information into Log File in hMailServer
- Exploited in the wild
- Not known
- Fix
- None listed
What is CVE-2026-114471?
CVE-2026-114471 is a medium-severity vulnerability in Progressive Robot Ltd hMailServer, published on 21 Oct 2026.
Official description
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.
Weakness: CWE-532
Which versions are affected by CVE-2026-114471?
How do I fix CVE-2026-114471?
No fix has been published for CVE-2026-114471 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-114471 being exploited?
There is no known exploitation of CVE-2026-114471 in the wild and no public exploit code.
Sources
Also known as GHSA-g5mm-pj68-xrm8.