CVE-2026-45323: Jpettitt Meshcore Card

Critical severity, CVSS 9.6. EPSS: 0.5% chance of exploitation in the next 30 days.

MeshCore Card provides MeshCore Lovelace card for Home Assistant. Prior to 0.3.3, Meshcore node names are rendered without HTML escaping in meshcore-card, allowing any node within direct or indirect (repeated) radio range to execute arbitrary javascript in the Home Assistant frontend of anyone viewing the card. This vulnerability is fixed in 0.3.3.

Affected products

• Jpettitt Meshcore Card: before 0.3.3 (fixed in 0.3.3)

Published 2026-05-28. Last modified 2026-06-17.