CVE-2026-47861

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

State: Published
Severity: 6.3 Medium
Published: Aug 26, 2026
Updated: Aug 27, 2026
Reserved: May 20, 2026

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

Scores

CVSS	Score	Vector	Source
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L	vmware

Weaknesses

CWE-918 Server-Side Request Forgery (SSRF)

Affected Products

Product	Versions
Spring IntegrationSpring	7.1.0Affected 7.0.0 through 7.0.5Affected 6.5.0 through 6.5.10Affected 6.4.0 through 6.4.12Affected 5.5.21 and earlierAffected

References

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

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