Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
Nezha Monitoring (Go package github.com/nezhahq/nezha) versions 1.0.0 up to but not including 2.2.0 are vulnerable. An authenticated user with terminal or file manager access can open an unlimited number of WebSocket streams to monitored agents, exhausting dashboard memory and goroutines and spawning shell processes on agents, which can cause denial of service. Upgrade to version 2.2.0 or later; the source lists no other workaround.
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:L/UI:N/S:U/C:N/I:N/A:H | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0035, the 28th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 15:06 UTC First seen by agentprime
- 31 Oct 2026, 15:06 UTC Confirmed by OSV