CVE-2026-47863
Medium
Description
In Reactor Core, applications that use the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service (DoS) condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.7.19 and earlier
SeverityMedium
CVSS5.9
Exploit probability—
Product
Broadcom Reactor Core
PublishedAug 27, 2026
First seenAug 27, 2026
Weakness typeCWE-835CWE-835
How to fix
Update
- broadcom reactor_core3.7.20, 3.8.6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| broadcom reactor_core | 3.5.7 ≤ v < 3.7.20, 3.8.0 ≤ v < 3.8.6.1 | 3.7.20, 3.8.6.1 |
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