CVE-2026-41721Network attack vector

Service interruption via unbounded projection collection binding

Published Jun 9, 2026 · Updated Jun 9, 2026

Denial of service in Spring Data Commons allows remote attackers to exhaust application memory through a crafted HTTP request. MapDataBinder passes attacker-controlled collection indexes to an auto-growing SpEL property accessor without a collection-size limit, causing oversized allocations. Reachability requires Spring Data Web Support and a controller method using @ProjectedPayload; the bounded consequence is application unavailability.

CVSS severity5.9
Medium
EPSS probability0.33%
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 Data Commons allows remote attackers to exhaust application memory through a crafted HTTP request. MapDataBinder passes attacker-controlled collection indexes to an auto-growing SpEL property accessor without a collection-size limit, causing oversized allocations. Reachability requires Spring Data Web Support and a controller method using @ProjectedPayload; the bounded consequence is application unavailability.

The record

CVE
CVE-2026-41721
Published
Jun 9, 2026
Updated
Jun 9, 2026
Vendor
Spring
Product
Spring Data Commons
Classifications
CWE-400, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 9, 2026Record 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=2.7.0 <2.7.20
  2. Affected versionversion=3.0.0 <3.0.16
  3. Affected versionversion=3.1.0 <3.1.15
  4. Affected versionversion=3.2.0 <3.2.16
  5. Affected versionversion=3.3.0 <3.3.17
  6. Affected versionversion=3.4.0 <3.4.15
  7. Affected versionversion=3.5.0 <3.5.12
  8. Affected versionversion=4.0.0 <4.0.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Spring · Spring Data Commonsversion=2.7.0 <2.7.20; version=3.0.0 <3.0.16; version=3.1.0 <3.1.15; version=3.2.0 <3.2.16; version=3.3.0 <3.3.17; version=3.4.0 <3.4.15; version=3.5.0 <3.5.12; version=4.0.0 <4.0.6

Published CVSS scores

5.9VMwareCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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-400Uncontrolled Resource Consumption
T1499.004Application or System Exploitation

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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