CVE-2026-45323
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.32%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 9.6 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
- EPSS
- 0.32% probability · 24th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-79
- Affected
- jpettitt/meshcore card
- Source
- security-advisories@github.com
References
- https://github.com/jpettitt/meshcore-card/security/advisories/GHSA-5vrg-xpcj-xppcExploit, Mitigation, Vendor Advisory
- https://github.com/jpettitt/meshcore-card/security/advisories/GHSA-5vrg-xpcj-xppcExploit, Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.