CVE-2024-22271Network attack vector

Service exhaustion via failed composition cache growth

Published Jul 9, 2024 · Updated Aug 1, 2024

Denial of service in Spring Cloud Function 4.0.0 through 4.0.7 and 4.1.0 through 4.1.1 allows remote attackers to exhaust application memory. BeanFactoryAwareFunctionRegistry.lookup accepts compositions containing nonexistent function names and repeatedly expands its registration cache when the registered-name guard is bypassed outside debug logging. Exposure requires the Web module and remotely reachable function-composition input; repeated crafted lookups eventually interrupt the application service.

CVSS severity8.2
High
EPSS probability0.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Spring Cloud Function 4.0.0 through 4.0.7 and 4.1.0 through 4.1.1 allows remote attackers to exhaust application memory. BeanFactoryAwareFunctionRegistry.lookup accepts compositions containing nonexistent function names and repeatedly expands its registration cache when the registered-name guard is bypassed outside debug logging. Exposure requires the Web module and remotely reachable function-composition input; repeated crafted lookups eventually interrupt the application service.

The record

CVE
CVE-2024-22271
Published
Jul 9, 2024
Updated
Aug 1, 2024
Vendor
Spring
Product
Spring Cloud Function
Classifications
CWE-20, T1499.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.0.0 <4.0.8
  2. Affected versionversion=4.1.0 <4.1.2
  3. Affected versionversion=Spring Cloud Function Framework 4.1.0-4.1.2, Spring Cloud Function Framework 4.0.0-4.0.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Spring · Spring Cloud Functionversion=4.0.0 <4.0.8; version=4.1.0 <4.1.2; version=Spring Cloud Function Framework 4.1.0-4.1.2, Spring Cloud Function Framework 4.0.0-4.0.8

Published CVSS scores

8.8GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
8.2VMwareCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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