CVE-2026-58250
HIGH SEVERITYCVSS Score & Metrics
Base Score
7.5 / 10
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Vulnerability Description
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.12.8 and 2.11.17, an unauthenticated peer with network access to a leafnode listener with compression enabled could crash the server during the pre-authentication leafnode handshake by sending repeated leafnode INFO protocol messages before authentication and account setup completed. This issue is fixed in versions 2.12.8 and 2.11.17.
Vulnerability Details
Published Date
Last Modified
CWE ID
CWE-476
Source
NVD
Vendor
nats-io
Product
nats-server
External References
- https://github.com/nats-io/nats-server/commit/8dcb26eaea78fdcbe96dbee5986d6019fd5cb94a
- https://github.com/nats-io/nats-server/commit/fc5fe39177533e9dbdd651d2458285bfae1dde27
- https://github.com/nats-io/nats-server/releases/tag/v2.11.17
- https://github.com/nats-io/nats-server/releases/tag/v2.12.8
- https://github.com/nats-io/nats-server/security/advisories/GHSA-3g5q-cfh2-cq67
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