SEPTEMBER 14, 2026
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Case File

CVE-2026-42393

LOW · CVSS 3.1 EPSS 0.14% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-28 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

The vulnerability affects the doveadm service, where the timing comparison used for password and API key verification is not fully secure, potentially allowing an attacker on the same network to infer the length of the secret through precise timing measurements. While the actual secret remains undisclosed, this information can facilitate targeted guessing attacks. Organizations utilizing doveadm should prioritize restricting network access to trusted clients and updating to a non-vulnerable version to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-42393
Severity
LOW
CVSS
3.1
EPSS
0.14%

Original NVD Description

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of the secret, which reduces the effort needed to guess it. The secret value itself is not disclosed. Restrict network access to the doveadm service to trusted clients. Update to non-vulnerable version. No publicly available exploits are known.