Reactor Core 3.8.0 - 3.8.6
Reactor Core 3.5.0 - 3.7.19
Reactor Core 3.4.41 and earlier
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Spring | Reactor Core | unaffected |
|
No data.
No data.
No data available yet.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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No advisories yet.
| Link | Providers |
|---|---|
| https://spring.io/security/cve-2026-47857 |
|
Thu, 27 Aug 2026 17:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-682 |
Thu, 27 Aug 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-190 | |
| Metrics |
ssvc
|
Thu, 27 Aug 2026 01:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-682 |
Thu, 27 Aug 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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 | |
| Title | Reactor Core windowTimeout fair-backpressure stream hang due to 20-bit index wrap-around | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: vmware
Published:
Updated: 2026-08-27T15:07:38.775Z
Reserved: 2026-05-20T10:00:55.156Z
Link: CVE-2026-47857
Vulnrichment
Updated: 2026-08-27T15:07:08.808Z
NVD
Status : Received
Published: 2026-08-27T01:17:32.687
Modified: 2026-08-27T17:18:30.427
Link: CVE-2026-47857
Redhat
No data.
OpenCVE Enrichment
Updated: 2026-08-27T17:00:13Z
-
CWE-190
Integer Overflow or Wraparound