CVE-2026-47860

Unbounded decompression of attacker-supplied compressed message bodies

MEDIUM

6.5

CVSS Score

Published: August 26, 2026 at 11:28 PM UTC

Updated: September 2, 2026 at 04:52 PM UTC

2 products affected across 2 vendorsSpring Advanced Message Queuing ProtocolSpring Advanced Message Queuing Protocol

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Severity

MEDIUM6.5

Exploit prediction

EPSS 0.4%

SSVC

No known exploit

Description

An attacker who can publish to a queue consumed by an application that has enabled message decompression can crash the consumer JVM with a single ~1 MB message. Spring AMQP 4.1.0 Spring AMQP 4.0.0 - 4.0.4 Spring AMQP 3.2.0 - 3.2.12 Spring AMQP 2.4.18 and earlier

Affected

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

Spring Advanced Message Queuing Protocol · VMware

95%

v < 2.4.193.2.0 ≤ v < 3.2.134.0.0 ≤ v < 4.0.4.14.1.0 ≤ v < 4.1.0.1

Affected range stops below 2.4.19, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.13, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.4.1, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.0.1, so it looks safe — our inference, not a vendor statement

Spring Advanced Message Queuing Protocol · Spring

60%

v ≤ 2.4.183.2.0 ≤ v ≤ 3.2.124.0.0 ≤ v ≤ 4.0.43.2.0 4.0.0 4.1.0

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-2026-47860

References (1)

Vendor Advisory

Source: cverecord

https://spring.io/security/cve-2026-47860

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

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

CVSS

6.5MEDIUMvmware

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

Vector?

Quick Info

StatusANALYZED

CWE

CWE-835

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