CVE-2026-71272: Usememos Memos

High severity, CVSS 8.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Memos' webhook dispatch function safeDialContext (internal/webhook/webhook.go) resolves the target hostname via net.DefaultResolver.LookupHost and validates the resulting IPs against reserved ranges, but then dials net.JoinHostPort(host, port) using the original hostname rather than the already-validated IP address.

Affected products

• Usememos Memos: up to and including 0.29.1

Published 2026-08-05. Last modified 2026-08-26.