VMwareCVE-2026-47857
VMware Reactor Core: denial of service
Medium5.9CVE-2026-47857 · Published Aug 27, 2026 · updated Sep 4, 2026
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
More VMware advisories
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|---|---|---|---|
| Aug 27 | VMware Spring AMQP: resource leak | Medium6.5 | No fix yet |
| Aug 27 | VMware Spring Integration: race condition | Medium4.2 | No fix yet |
| Aug 27 | VMware Spring Integration: improper input validation | Medium6.3 | No fix yet |
| Aug 27 | VMware Spring Integration: race condition | High8.2 | No fix yet |
| Aug 27 | VMware Spring Integration: unsafe deserialization | High8.0 | No fix yet |
| Aug 27 | VMware Spring Integration: link following | Medium6.8 | No fix yet |