CVE-2026-45323 — Security Box Score

CVE · referencelatest edition

Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-45323CRITICAL

jpettitt meshcore-card — MeshCore Card: XSS vulnerability through meshcore node name

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  C  H  H  H    9.6   .0032   24.5     —

AFFECTED
  Product        Versions   Fixed
  meshcore-card  < 0.3.3 –  —

TIMELINE
  May 11  Reserved by GitHub_M
  May 28  EXPLOIT PUBLISHED — CVE-2026-45323 (jpettitt meshcore-card). Public exploit reference added.
  May 28  Published (CNA: GitHub_M)

CWE-79 · CNA: GitHub_M · CVSS v3.1 · 1 reference · NVD status: Analyzed

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.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
May 11, 2026	Reserved	Reserved by GitHub_M
May 28, 2026	EXPLOIT PUBLISHED	EXPLOIT PUBLISHED — CVE-2026-45323 (jpettitt meshcore-card). Public exploit reference added.
May 28, 2026	Published	Published (CNA: GitHub_M)

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
jpettitt	meshcore-card	—	< 0.3.3	—

Weaknesses

CWE-79

References (1)

https://github.com/jpettitt/meshcore-card/security/advisories/GHSA-5vrg-xpcj-xppc [Exploit, Mitigation, Vendor Advisory]

Authoritative record: CVE-2026-45323 at cve.org

Vendors: jpettitt

Weaknesses: CWE-79

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-45323 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.