CVE-2025-30215
Description
NATS-Server is a High-Performance server for NATS.io, the cloud and edge native messaging system. In versions starting from 2.2.0 but prior to 2.10.27 and 2.11.1, the management of JetStream assets happens with messages in the $JS. subject namespace in the system account; this is partially exposed into regular accounts to allow account holders to manage their assets. Some of the JS API requests were missing access controls, allowing any user with JS management permissions in any account to perform certain administrative actions on any JS asset in any other account. At least one of the unprotected APIs allows for data destruction. None of the affected APIs allow disclosing stream contents. This vulnerability is fixed in v2.11.1 or v2.10.27.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | forky | fixed | 2.10.27-1 |
| debian | sid | fixed | 2.10.27-1 |
| debian | trixie | fixed | 2.10.27-1 |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| Go | github.com/nats-io/nats-server/v2 | >=2.11.0-RC.1,<2.11.1 | 2.11.1 |
| Go | github.com/nats-io/nats-server/v2 | >=2.2.0,<2.10.27 | 2.10.27 |
| Go | github.com/nats-io/nats-server/v2 | >=2.11.0,<2.11.1 | 2.10.27 |
References
- https://github.com/nats-io/nats-server/security/advisories/GHSA-fhg8-qxh5-7q3w
- https://nvd.nist.gov/vuln/detail/CVE-2025-30215
- https://advisories.nats.io/CVE/secnote-2025-01.txt
- https://github.com/nats-io/nats-server
- https://osv.dev/vulnerability/GO-2025-3600
- http://www.openwall.com/lists/oss-security/2025/04/08/5
- https://github.com/nats-io/nats-server/commit/3e7e4645a24e829a36b4210f2d7c34dea7f7a424
- https://security-tracker.debian.org/tracker/CVE-2025-30215
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.