Description
In Reactor Core, applications that use the Flux.windowTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service (DoS) condition.
Reactor Core 3.8.0 - 3.8.6
Reactor Core 3.5.0 - 3.7.19
Reactor Core 3.4.41 and earlier
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Spring | Reactor Core | 3.8.0 – ≤ 3.8.6, 3.5.0 – ≤ 3.7.19, ≤ 3.4.41 | — |
Advisories 1
- WID-SEC-2026-3665 SOS GmbH JobScheduler: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff BSI CERT-Bund (WID) · Nov 4, 2026