Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The legacy SSE transport in praisonaiagents (>=0.6.0, <1.6.59) and praisonai (>=3.10.0, <4.6.59) does not check the Origin or Host headers or require authentication for ToolsMCPServer's run_sse. A malicious website can use DNS rebinding to reach a local or internal SSE MCP server, list its tools, and invoke them as the local user. Upgrade praisonaiagents to 1.6.59 and praisonai to 4.6.59, or avoid running MCP servers with the SSE transport.
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 |
|---|---|---|---|---|
| 8.3 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0022, the 13th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:41 UTC First seen by agentprime
- 31 Oct 2026, 14:41 UTC Confirmed by OSV