CVE-2026-40990: CWE-770 Allocation of Resources Without Limits or Throttling in Spring Spring Cloud Function
CVE-2026-40990 is a medium severity vulnerability in Spring Cloud Function that allows an attacker to cause an out-of-memory (OOM) error by adding an unlimited number of functions to the Function Registry. This results from allocation of resources without limits or throttling. The vulnerability can lead to denial of service through resource exhaustion but does not affect confidentiality or cause data loss. Multiple specific versions of Spring Cloud Function are affected. No official patch or remediation guidance has been confirmed yet.
AI Analysis
Technical Summary
CVE-2026-40990 is a resource exhaustion vulnerability classified under CWE-770 in Spring Cloud Function. It occurs because the system allocates resources without imposing limits or throttling when functions are added to the Function Registry, potentially leading to an out-of-memory condition. This can cause denial of service by exhausting system resources. The vulnerability affects multiple exact versions of Spring Cloud Function, including 3.2.0, 4.1.0, 4.2.0, 4.3.0, and 5.0.0. There is currently no confirmed patch or official remediation guidance from the vendor.
Potential Impact
The vulnerability can cause denial of service due to resource exhaustion (out-of-memory error). It does not impact confidentiality or integrity, nor does it cause data loss. The CVSS score of 5.7 reflects a medium severity risk with partial impact on availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider limiting the number of functions registered or implement external resource controls to mitigate potential resource exhaustion.
CVE-2026-40990: CWE-770 Allocation of Resources Without Limits or Throttling in Spring Spring Cloud Function
Description
CVE-2026-40990 is a medium severity vulnerability in Spring Cloud Function that allows an attacker to cause an out-of-memory (OOM) error by adding an unlimited number of functions to the Function Registry. This results from allocation of resources without limits or throttling. The vulnerability can lead to denial of service through resource exhaustion but does not affect confidentiality or cause data loss. Multiple specific versions of Spring Cloud Function are affected. No official patch or remediation guidance has been confirmed yet.
CVSS v3.1
Score 5.7medium
Affected software
pkg:maven/org.springframework.cloud/spring-cloud-functionRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-40990 is a resource exhaustion vulnerability classified under CWE-770 in Spring Cloud Function. It occurs because the system allocates resources without imposing limits or throttling when functions are added to the Function Registry, potentially leading to an out-of-memory condition. This can cause denial of service by exhausting system resources. The vulnerability affects multiple exact versions of Spring Cloud Function, including 3.2.0, 4.1.0, 4.2.0, 4.3.0, and 5.0.0. There is currently no confirmed patch or official remediation guidance from the vendor.
Potential Impact
The vulnerability can cause denial of service due to resource exhaustion (out-of-memory error). It does not impact confidentiality or integrity, nor does it cause data loss. The CVSS score of 5.7 reflects a medium severity risk with partial impact on availability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, users should consider limiting the number of functions registered or implement external resource controls to mitigate potential resource exhaustion.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- vmware
- Date Reserved
- 2026-04-16T02:19:09.389Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a1de306e29bf47b503a54e4
Added to database: 06/01/2026, 19:52:38 UTC
Last enriched: 07/10/2026, 10:25:51 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 87
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