Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
CometVisu add-on for openHAB (Maven org.openhab.ui.bundles:org.openhab.ui.cometvisu) versions before 4.2.1 expose several endpoints that do not require authentication. An unauthenticated attacker with network access to the openHAB instance could read or modify sensitive data. Upgrade to version 4.2.1. The source gives few details about which endpoints or data are affected.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 6.5 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0052, the 44th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:13 UTC First seen by agentprime
- 31 Oct 2026, 15:13 UTC Confirmed by OSV