MongoDB Server up to 8.3.8 Storage Engine Configuration out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.6$0-$5k0.42+

Summaryinfo

A vulnerability, which was classified as problematic, was found in MongoDB Server up to 8.3.8. Affected is an unknown function of the component Storage Engine Configuration. Such manipulation leads to out-of-bounds. This vulnerability is documented as CVE-2026-82071. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in MongoDB Server up to 8.3.8. Affected by this issue is some unknown functionality of the component Storage Engine Configuration. The manipulation with an unknown input leads to a out-of-bounds vulnerability. Using CWE to declare the problem leads to CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. Impacted is integrity, and availability. CVE summarizes:

Insufficient validation of storage engine configuration options in MongoDB Server allows an authenticated user with write privileges to supply crafted parameters during collection creation that override internal storage metadata. This results in an out-of-bounds memory write in the server process, causing a denial of service via server crash, with potential for further impact including arbitrary code execution.

The advisory is available at jira.mongodb.org. This vulnerability is handled as CVE-2026-82071 since 08/28/2026. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not available.

Upgrading to version 8.3.9 eliminates this vulnerability.

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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: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.1
CNA Vector (mongodb): 🔒

CVSSv2info

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

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Server 8.3.9

Timelineinfo

08/28/2026 CVE reserved
09/08/2026 +11 days Advisory disclosed
09/08/2026 +0 days VulDB entry created
09/08/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: jira.mongodb.org
Status: Confirmed

CVE: CVE-2026-82071 (🔒)
GCVE (CVE): GCVE-0-2026-82071
GCVE (VulDB): GCVE-100-399926

Entryinfo

Created: 09/08/2026 18:50
Changes: 09/08/2026 18:50 (76)
Complete: 🔍
Cache ID: 216::103

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