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CVE-2026-33044 is a cross-site scripting vulnerability in Home Assistant affecting versions starting in 2020.02 and prior to 2026.01. An authenticated user can assign a malicious value to a device entity name. When that entity is displayed on a dashboard Map card, the malicious name is rendered in a way that enables script execution in another user's browser. Exploitation requires a victim to view a dashboard containing the affected Map card and hover over the relevant information point, which triggers the vulnerable rendering path.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A historical Home Assistant vulnerability involving XSS through a malicious device entity name on the Map card.
An actively exploited improper access control vulnerability in Broadcom VMware vCenter.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.