CVE-2020-37248
Medium
Description
OfflineIMAP before 8.0.3 trusts the server with their STARTTLS capability prior to authentication, which allows STRIPTLS/man-in-the-middle attacks, taking over the connection and extracting account credentials in cleartext.
SeverityMedium
CVSS6.5
Exploit probability—
ProductOfflineIMAP
PublishedJun 8, 2026
First seenJun 8, 2026
Weakness typeCWE-348CWE-348
How to fix
Update
- OfflineIMAP OfflineIMAP8.0.3 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| OfflineIMAP OfflineIMAP | v < 8.0.3 | 8.0.3 |
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