CVE-2026-47861

UDP adapter sends ack to attacker-supplied host:port parsed from packet body, even when acknowledge=false

MEDIUM

6.3

CVSS Score

Published: August 26, 2026 at 11:49 PM UTC

Updated: September 2, 2026 at 04:42 PM UTC

2 products affected across 2 vendorsSpring IntegrationSpring Integration

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Severity

MEDIUM6.3

Exploit prediction

EPSS 0.3%

SSVC

No known exploit

Description

An unauthenticated remote attacker who can send a single UDP packet to a Spring Integration UDP inbound adapter can cause the server to emit an outbound UDP datagram to an arbitrary internal or external host and port of the attacker's choosing. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12 Spring Integration 5.5.21 and earlier

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Spring Integration · VMware

95%

v < 5.5.226.4.0 ≤ v < 6.4.136.5.0 ≤ v < 6.5.117.0.0 ≤ v < 7.0.5.17.1.0 ≤ v < 7.1.0.1

Affected range stops below 5.5.22, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.4.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 6.5.11, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.0.5.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 7.1.0.1, so it looks safe — our inference, not a vendor statement

Spring Integration · Spring

60%

v ≤ 5.5.216.4.0 ≤ v ≤ 6.4.126.5.0 ≤ v ≤ 6.5.107.0.0 ≤ v ≤ 7.0.56.4.0 6.5.0 7.0.0 7.1.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

https://spring.io/security/cve-2026-47861

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-47861

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.3MEDIUMvmware

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: LOW
Integrity: LOW
Availability: LOW

Vector?

Quick Info

StatusANALYZED

CWE

CWE-918

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