CVE-2026-13063: CWE-190: Integer Overflow or Wraparound in MongoDB MongoDB Server
CVE-2026-13063 is a medium severity vulnerability in MongoDB Server versions 8.2.0 and 8.3.0. An authenticated user with standard read/write privileges can trigger an integer overflow or wraparound in the libmongocrypt library by sending a crafted aggregation command. This causes the mongod process to terminate due to an out-of-memory condition from an excessively large memory allocation.
AI Analysis
Technical Summary
This vulnerability involves an integer overflow or wraparound (CWE-190) in MongoDB Server's libmongocrypt library. When an authenticated user with read/write privileges sends a specially crafted aggregation command, the library insufficiently validates payload-supplied values, leading to an excessively large memory allocation request. This can cause the mongod process to terminate due to an out-of-memory condition. The issue affects MongoDB Server versions 8.2.0 and 8.3.0. No official patch or remediation level has been published as of the data provided.
Potential Impact
An attacker with authenticated read/write access can cause a denial of service by crashing the mongod process through an out-of-memory condition. This disrupts database availability but does not indicate data corruption or privilege escalation based on the available information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit authenticated user privileges to trusted users only and monitor for unusual aggregation command usage. No official remediation or temporary fix is currently documented.
CVE-2026-13063: CWE-190: Integer Overflow or Wraparound in MongoDB MongoDB Server
Description
CVE-2026-13063 is a medium severity vulnerability in MongoDB Server versions 8.2.0 and 8.3.0. An authenticated user with standard read/write privileges can trigger an integer overflow or wraparound in the libmongocrypt library by sending a crafted aggregation command. This causes the mongod process to terminate due to an out-of-memory condition from an excessively large memory allocation.
CVSS v4.0
Score 5.3medium
Affected software
Run 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
This vulnerability involves an integer overflow or wraparound (CWE-190) in MongoDB Server's libmongocrypt library. When an authenticated user with read/write privileges sends a specially crafted aggregation command, the library insufficiently validates payload-supplied values, leading to an excessively large memory allocation request. This can cause the mongod process to terminate due to an out-of-memory condition. The issue affects MongoDB Server versions 8.2.0 and 8.3.0. No official patch or remediation level has been published as of the data provided.
Potential Impact
An attacker with authenticated read/write access can cause a denial of service by crashing the mongod process through an out-of-memory condition. This disrupts database availability but does not indicate data corruption or privilege escalation based on the available information.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, limit authenticated user privileges to trusted users only and monitor for unusual aggregation command usage. No official remediation or temporary fix is currently documented.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mongodb
- Date Reserved
- 2026-06-23T18:00:06.309Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a61231e9c2644c7f89b2c91
Added to database: 07/22/2026, 20:07:58 UTC
Last enriched: 07/30/2026, 04:06:00 UTC
Last updated: 08/30/2026, 01:47:53 UTC
Views: 56
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.