CVE-2026-47857

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

CVSS v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://spring.io/security/cve-2026-47857	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:broadcom:reactor_core::::::::
	cpe:2.3:a:broadcom:reactor_core::::::::
	cpe:2.3:a:broadcom:reactor_core::::::::

History

No history.

Information

Published : 2026-08-27 01:17

Updated : 2026-09-04 20:10

NVD link : CVE-2026-47857

Mitre link : CVE-2026-47857

CVE.ORG link : CVE-2026-47857

JSON object : View

Products Affected

broadcom

reactor_core

CWE

CWE-190

Integer Overflow or Wraparound

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