Advisoriesby IbisVMwareCVE-2026-47857
VMware Reactor Core: denial of service
No fix yet
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 versions
| Package | Affected | Fixed in |
|---|---|---|
| Reactor Core Product | >= 3.8.0, <= 3.8.6 | No fix yet |
| >= 3.5.0, <= 3.7.19 | No fix yet | |
| <= 3.4.41 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-190