Medium severity5.9NVD Advisory· Published Aug 27, 2026· Updated Sep 1, 2026
CVE-2026-47863
CVE-2026-47863
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
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1- Range: 3.8.0 - 3.8.6, 3.7.19 and earlier
Patches
Vulnerability mechanics
References
1- spring.io/security/cve-2026-47863nvdVendor Advisory
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