4.3
Medium
CVE-2026-42392 An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to…
Description
An attacker that has valid credentials can send an invalid IMAP URLFETCH command, which causes uninitialized memory to be included in the error response returned to the client. Process memory contents can be disclosed to the client, which may include sensitive data. Disable the IMAP URLAUTH functionality. Update to non-vulnerable version. No publicly available exploits are known.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| OX Dovecot Pro 2.3 | 2.3.0 → < 3.1.6 | 3.1.6 |
| OX Dovecot CE 2.3 | 2.3.0 → < 2.4.5 | 2.4.5 |
Other CVEs of OX Dovecot Pro
The 44 CVEs of OX Dovecot Pro →
CVE-2026-73209
An attacker that has valid credentials can send crafted compressed data that causes the affected process to exhaust…
6.5
Medium
CVE-2026-73208
An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token…
7.4
High
CVE-2026-52687
An attacker that has valid credentials can select a compression algorithm for the IMAP connection whose decompression…
6.5
Medium
CVE-2026-52681
Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the…
3.1
Low