CVE-2026-13066
Server-Side JavaScript DBPointer BSON Serialization Memory Disclosure
Description
Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side JavaScript.
INFO
Published Date :
July 22, 2026, 8:16 p.m.
Last Modified :
Aug. 5, 2026, 2:43 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | MEDIUM | a39b4221-9bd0-4244-95fc-f3e2e07f1deb | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | a39b4221-9bd0-4244-95fc-f3e2e07f1deb | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update MongoDB to a secure version.
- Disable server-side JavaScript if not required.
- Limit access to server-side JavaScript.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-13066.
| URL | Resource |
|---|---|
| https://jira.mongodb.org/browse/SERVER-127694 | Vendor Advisory Issue Tracking |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-13066 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-13066
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-13066 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-13066 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Aug. 05, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* versions from (including) 7.0.0 up to (excluding) 7.0.39 *cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.28 *cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.12 *cpe:2.3:a:mongodb:mongodb:*:*:*:*:-:*:*:* versions from (including) 8.3.0 up to (excluding) 8.3.7 Added Reference Type MongoDB, Inc.: https://jira.mongodb.org/browse/SERVER-127694 Types: Issue Tracking, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-13066', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-07-23T14:23:03.449071Z'} -
New CVE Received by [email protected]
Jul. 22, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'MongoDB', 'product': 'MongoDB Server', 'versions': [{'status': 'affected', 'version': '7.0', 'lessThan': '7.0.39', 'versionType': 'semver'}, {'status': 'affected', 'version': '8.0', 'lessThan': '8.0.28', 'versionType': 'semver'}, {'status': 'affected', 'version': '8.2.0', 'lessThan': '8.2.12', 'versionType': 'semver'}, {'status': 'affected', 'version': '8.3.0', 'lessThan': '8.3.7', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description Improper handling of DBPointer objects during BSON serialization in MongoDB's server-side JavaScript engine can result in internal process memory contents being included in data returned to the client. This constitutes an unintended information disclosure affecting deployments that use server-side JavaScript. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N Added CWE CWE-843 Added Reference https://jira.mongodb.org/browse/SERVER-127694