Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The nats-server Go package, versions before 2.11.15 and from 2.12.0-RC.1 before 2.12.6, exposes its static client credentials when they are passed on the command line and the monitoring port is enabled. Anyone who can reach the monitoring port's /debug/vars endpoint can read the unredacted command-line arguments, including those credentials. Upgrade to 2.11.15 or 2.12.6. Otherwise, move credentials into a configuration file and do not enable the monitoring port when secrets are passed via argv.
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 |
|---|---|---|---|---|
| 7.4 | High | 3.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N | CNA (GitHub_M) |
- CISA KEV Not listed.
- EPSS 0.0043, the 37th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:13 UTC First seen by agentprime
- 31 Oct 2026, 14:13 UTC Confirmed by OSV