CVE-2026-40039: Pachno

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

Pachno 1.0.6 contains an open redirection vulnerability that allows attackers to redirect users to arbitrary external websites by manipulating the return_to parameter. Attackers can craft malicious login URLs with unvalidated return_to values to conduct phishing attacks and steal user credentials.

Affected products

• Pachno Pachno: version 1.0.6 only

Published 2026-04-13. Last modified 2026-06-17.