CVE-2026-43506: Prosody

High severity, CVSS 7.5. EPSS: 0.5% chance of exploitation in the next 30 days.

An issue was discovered in Prosody before 0.12.6 and 1.0.0 through 13.0.0 before 13.0.5. A Denial of Service can occur via memory exhaustion caused by memory leaks from unauthenticated connections.

Affected products

• Prosody Prosody: before 0.12.6 (fixed in 0.12.6); from 13.0.0, before 13.0.5 (fixed in 13.0.5)

Published 2026-05-01. Last modified 2026-06-17.