Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
ha-mcp versions before 7.0.0 are affected when the beta OAuth mode is enabled. The standard setup with a preconfigured Home Assistant URL and token is not affected. An unauthenticated attacker can submit arbitrary URLs to the OAuth consent form and use the differing error messages to map reachable hosts and open ports on the server's network. Upgrade to 7.0.0.
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 |
|---|---|---|---|---|
| 5.3 | Medium | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0032, the 25th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:03 UTC First seen by agentprime
- 31 Oct 2026, 15:03 UTC Confirmed by OSV