CVE-2026-47857
Medium · 5.9CVSS
5.9
EPSS
0.4%
Published
Aug 27, 2026
CISA due date
—
The record
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 packages
| Ecosystem | Package | Introduced | Fixed |
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