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CVE-2026-13067— tlsCATrusts Role Restriction Not Enforced via PROXY Protocol v2 on Unix Domain Socket

Quick assessment

Affected
MongoDB MongoDB Server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

MongoDB Server是美国MongoDB公司开源的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server 8.0.28之前版本和8.3.7之前版本存在授权问题漏洞，该漏洞源于当在Unix域套接字路径上使用PROXY protocol v2时，X.509客户端证书派生的角色可能不会对照配置的tlsCATrusts允许列表进行验证，这可能导致在进行MONGODB-X509身份验证后出现意外的角色分配。

CVSS 6.3 · Medium EPSS 0.10% · P1

Possible ATT&CK Techniques 1 AI

T1550.001 · Application Access Token

Affected Version Matrix 2

VendorProduct Version RangeStatus
MongoDB MongoDB Server 8.0< 8.0.28 affected
8.3.0< 8.3.7 affected
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I. Basic Information for CVE-2026-13067

Vulnerability Information
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Vulnerability Title
tlsCATrusts Role Restriction Not Enforced via PROXY Protocol v2 on Unix Domain Socket
Source: CVE Program / CVE List V5
Vulnerability Description
When PROXY protocol v2 is used on the Unix domain socket path, roles derived from X.509 client certificates may not be validated against the configured tlsCATrusts allow-list. This can result in unintended role assignments following MONGODB-X509 authentication. Affected scenarios require local access to the proxy Unix domain socket and a valid X.509 certificate issued by a trusted certificate authority.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
MongoDB Server 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MongoDB Server是美国MongoDB公司开源的一套开源的NoSQL数据库。该数据库提供面向集合的存储、动态查询、数据复制及自动故障转移等功能。 MongoDB Server 8.0.28之前版本和8.3.7之前版本存在授权问题漏洞，该漏洞源于当在Unix域套接字路径上使用PROXY protocol v2时，X.509客户端证书派生的角色可能不会对照配置的tlsCATrusts允许列表进行验证，这可能导致在进行MONGODB-X509身份验证后出现意外的角色分配。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
MongoDB MongoDB Server 8.0 ~ 8.0.28 -

II. Public POCs for CVE-2026-13067

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III. Intelligence Information for CVE-2026-13067

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Patches & Fixes for CVE-2026-13067 (1)

Same Patch Batch · MongoDB · 2026-07-22 · 26 CVEs total

CVE-2026-13072 8.1 HIGH MongoDB Improper Input Validation in Compute Mode External Data Processing Leading to Memo
CVE-2026-13059 8.1 HIGH Improper Validation of Client-Supplied Command Parameters Allowing Role-Based Access Contr
CVE-2026-14881 7.8 HIGH Compass connection import allows to override OIDC browser open command (usually set throug
CVE-2026-13078 7.7 HIGH Local File Disclosure in MongoDB Server via MozJS Scripting Engine Module Loader
CVE-2026-13077 7.1 HIGH Out-of-Bounds Heap Read in BSON CodeWScope Element Parsing via Malformed BSONColumn Data
CVE-2026-13058 7.1 HIGH Transaction Command Insufficient Input Validation Leading to Process Termination
CVE-2026-13069 6.5 MEDIUM Queryable Encryption FLE2 Find Payload Missing Input Validation Leading to Resource Exhaus
CVE-2026-13062 6.5 MEDIUM MongoDB mongos Improper Validation of Internal Flags in Queryable Encryption Write Command
CVE-2026-13060 6.5 MEDIUM $graphLookup Aggregation Stage Authorization Check Inconsistency Allowing Unauthorized Col
CVE-2026-13066 6.5 MEDIUM Server-Side JavaScript DBPointer BSON Serialization Memory Disclosure
CVE-2026-13075 6.5 MEDIUM $rankFusion and $scoreFusion Unbounded Memory Allocation During Error Suggestion Generatio
CVE-2026-13065 6.5 MEDIUM MongoDB $linearFill Window Function Improper Input Validation Leading to Process Terminati
CVE-2026-13055 6.5 MEDIUM Server crash via aggregation pipeline expression with compound wildcard index specificatio
CVE-2026-9737 6.5 MEDIUM Find command with $meta sort can lead to crash
CVE-2026-13064 6.5 MEDIUM MongoDB $jsonSchema Query Operator Excessive CPU Consumption Leading to Denial of Service
CVE-2026-13076 6.5 MEDIUM Aggregation Framework Memory Exhaustion Leading to Process Termination
CVE-2026-13056 6.5 MEDIUM A user with read access can cause a DoS by executing a specifically crafted query to consu
CVE-2026-13071 6.5 MEDIUM Server-Side JavaScript Aggregation Expression Memory Safety Issue Leading to Process Termi
CVE-2026-13070 5.3 MEDIUM Improper Validation of OCSP Response During Outbound TLS Handshake Leading to Process Term
CVE-2026-13057 5.3 MEDIUM Authorization Bypass via Client-Supplied $search.mergingPipeline Leaks Unauthorized Collec

Showing top 20 of 26 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: MongoDB Server
Same vendor: MongoDB
Same weakness: CWE-863

V. Comments for CVE-2026-13067

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