MongoDB Server up to 7.0.33/8.0.22/8.2.8/8.3.1 AST bitsAllSet/bitsAnySet/bitsAllClear/bitsAnyClear improperly controlled sequential memory allocation

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in MongoDB Server up to 7.0.33/8.0.22/8.2.8/8.3.1. It has been declared as problematic. This impacts an unknown function of the component AST Handler. Executing a manipulation of the argument bitsAllSet/bitsAnySet/bitsAllClear/bitsAnyClear can lead to improperly controlled sequential memory allocation. This vulnerability is registered as CVE-2026-8199. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in MongoDB Server up to 7.0.33/8.0.22/8.2.8/8.3.1 and classified as problematic. This vulnerability affects some unknown processing of the component AST Handler. The manipulation of the argument bitsAllSet/bitsAnySet/bitsAllClear/bitsAnyClear with an unknown input leads to a improperly controlled sequential memory allocation vulnerability. The CWE definition for the vulnerability is CWE-1325. The product manages a group of objects or resources and performs a separate memory allocation for each object, but it does not properly limit the total amount of memory that is consumed by all of the combined objects. As an impact it is known to affect availability. CVE summarizes:

An authenticated user can cause excess memory usage via bitwise match expression AST processing of $bitsAllSet, $bitsAnySet, $bitsAllClear, and $bitsAnyClear. This contributes to memory pressure and may lead to availability loss by OOM. This issue impacts MongoDB Server v7.0 versions prior to 7.0.34, v8.0 versions prior to 8.0.23, v8.2 versions prior to 8.2.9 and v8.3 versions prior to 8.3.2.

The advisory is shared for download at jira.mongodb.org. This vulnerability was named CVE-2026-8199 since 05/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 315232 (MongoDB 7.0.x < 7.0.34 / 8.0.x < 8.0.23 / 8.2.x < 8.2.9 / 8.3.x < 8.3.2 Multiple Vulnerabilities (SERVER-122032 / SERVER-122449)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 7.0.34, 8.0.23, 8.2.9 or 8.3.2 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (315232). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 6.5
CNA Vector (mongodb): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improperly controlled sequential memory allocation
CWE: CWE-1325
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 315232
Nessus Name: MongoDB 7.0.x < 7.0.34 / 8.0.x < 8.0.23 / 8.2.x < 8.2.9 / 8.3.x < 8.3.2 Multiple Vulnerabilities (SERVER-122032 / SERVER-122449)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Server 7.0.34/8.0.23/8.2.9/8.3.2

Timelineinfo

05/09/2026 CVE reserved
05/13/2026 +4 days Advisory disclosed
05/13/2026 +0 days VulDB entry created
05/19/2026 +6 days VulDB entry last update

Sourcesinfo

Advisory: jira.mongodb.org
Status: Confirmed

CVE: CVE-2026-8199 (🔒)
GCVE (CVE): GCVE-0-2026-8199
GCVE (VulDB): GCVE-100-363460

Entryinfo

Created: 05/13/2026 07:09
Updated: 05/19/2026 19:57
Changes: 05/13/2026 07:09 (77), 05/19/2026 19:57 (2)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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