NATS Server: Incomplete fix for CVE-2026-33249: Leaf node connections bypass Nats-Trace-Dest permission check
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.8, message trace destination checks were applied to ordinary client connections but not consistently to messages arriving through leafnode connections, allowing a leafnode operator to send trace events to subjects that would not otherwise be permitted and to use trace-only behavior to prevent normal delivery or storage of affected messages. This issue is fixed in versions 2.14.3 and 2.12.8.
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2026-58254US | medium6.5OT erhöht | — | ||
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.8, message trace destination checks were applied to ordin… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/nats-io/nats-server/commit/cbe845932980b71563efac5cfa4cc751c88936cdFIX
- https://github.com/nats-io/nats-server/releases/tag/v2.12.8ARTICLE
- https://github.com/nats-io/nats-server/releases/tag/v2.14.3ARTICLE
- https://github.com/nats-io/nats-server/security/advisories/GHSA-p3j5-5hrq-p75hADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-58254WEB
Advisories wie diese benennen die exponierten Produkte, die Angreifer auf Ihrer Angriffsfläche ins Visier nehmen. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.
Kostenloser Scan