CVE-2026-13056: CWE-1325: Improperly Controlled Sequential Memory Allocation in MongoDB MongoDB Server
CVE-2026-13056 is a high-severity vulnerability in MongoDB Server where crafted queries using expressions that generate large arrays can cause the server to allocate excessively large intermediate objects in memory. This can lead to an out-of-memory (OOM) crash of the server. The issue affects MongoDB Server versions 8.0 and 8.3.0. There is no confirmed patch or official remediation available at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-13056) in MongoDB Server involves improperly controlled sequential memory allocation (CWE-1325). Attackers can craft queries that generate very large intermediate arrays in memory, causing the server to consume excessive memory and crash due to OOM errors. The CVSS 4.0 score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability. No official fix or patch has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation results in denial of service by crashing the MongoDB Server due to out-of-memory conditions. This impacts availability but does not indicate direct compromise of data confidentiality or integrity based on the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting the complexity and size of queries that generate large arrays or intermediate objects to reduce the risk of triggering this condition.
CVE-2026-13056: CWE-1325: Improperly Controlled Sequential Memory Allocation in MongoDB MongoDB Server
Description
CVE-2026-13056 is a high-severity vulnerability in MongoDB Server where crafted queries using expressions that generate large arrays can cause the server to allocate excessively large intermediate objects in memory. This can lead to an out-of-memory (OOM) crash of the server. The issue affects MongoDB Server versions 8.0 and 8.3.0. There is no confirmed patch or official remediation available at this time.
CVSS v4.0
Score 7.1high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-13056) in MongoDB Server involves improperly controlled sequential memory allocation (CWE-1325). Attackers can craft queries that generate very large intermediate arrays in memory, causing the server to consume excessive memory and crash due to OOM errors. The CVSS 4.0 score is 7.1, indicating a high severity with network attack vector, low attack complexity, no privileges or user interaction required, and high impact on availability. No official fix or patch has been published yet, and no known exploits are reported in the wild.
Potential Impact
Successful exploitation results in denial of service by crashing the MongoDB Server due to out-of-memory conditions. This impacts availability but does not indicate direct compromise of data confidentiality or integrity based on the provided data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider limiting the complexity and size of queries that generate large arrays or intermediate objects to reduce the risk of triggering this condition.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-06-23T17:59:58.065Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a61231e9c2644c7f89b2c7c
Added to database: 07/22/2026, 20:07:58 UTC
Last enriched: 07/30/2026, 07:22:23 UTC
Last updated: 09/02/2026, 20:21:55 UTC
Views: 71
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