Vulnerability-Lookup

CNVD-2026-29728

Vulnerability from cnvd - Published: 2026-07-27

Title

MongoDB Server拒绝服务漏洞（CNVD-2026-29728）

Description

MongoDB Server是一个开源的文档型数据库管理系统，主要提供高性能、可扩展的数据存储和查询功能。 MongoDB Server存在拒绝服务漏洞。该漏洞源于未能正确处理生成大型数组的表达式，导致在内存中创建超大的中间对象，攻击者可利用该漏洞构造恶意查询使服务器因OOM错误崩溃。

Severity

中

Patch Name

MongoDB Server拒绝服务漏洞（CNVD-2026-29728）的补丁

Patch Description

MongoDB Server是一个开源的文档型数据库管理系统，主要提供高性能、可扩展的数据存储和查询功能。 MongoDB Server存在拒绝服务漏洞。该漏洞源于未能正确处理生成大型数组的表达式，导致在内存中创建超大的中间对象，攻击者可利用该漏洞构造恶意查询使服务器因OOM错误崩溃。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://jira.mongodb.org/browse/SERVER-124355

Reference

https://nvd.nist.gov/vuln/detail/CVE-2026-13056

Impacted products

Name
['MongoDB MongoDB Server <8.0.28', 'MongoDB MongoDB Server <8.3.7']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2026-13056",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2026-13056"
    }
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  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://jira.mongodb.org/browse/SERVER-124355",
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  "number": "CNVD-2026-29728",
  "openTime": "2026-07-27",
  "patchDescription": "MongoDB Server\u662f\u4e00\u4e2a\u5f00\u6e90\u7684\u6587\u6863\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u4e3b\u8981\u63d0\u4f9b\u9ad8\u6027\u80fd\u3001\u53ef\u6269\u5c55\u7684\u6570\u636e\u5b58\u50a8\u548c\u67e5\u8be2\u529f\u80fd\u3002\r\n\r\nMongoDB Server\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u672a\u80fd\u6b63\u786e\u5904\u7406\u751f\u6210\u5927\u578b\u6570\u7ec4\u7684\u8868\u8fbe\u5f0f\uff0c\u5bfc\u81f4\u5728\u5185\u5b58\u4e2d\u521b\u5efa\u8d85\u5927\u7684\u4e2d\u95f4\u5bf9\u8c61\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6784\u9020\u6076\u610f\u67e5\u8be2\u4f7f\u670d\u52a1\u5668\u56e0OOM\u9519\u8bef\u5d29\u6e83\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "MongoDB Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2026-29728\uff09\u7684\u8865\u4e01",
  "products": {
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      "MongoDB MongoDB Server \u003c8.3.7"
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  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2026-13056",
  "serverity": "\u4e2d",
  "submitTime": "2026-07-24",
  "title": "MongoDB Server\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff08CNVD-2026-29728\uff09"
}

CVE-2026-13056 (GCVE-0-2026-13056)

Vulnerability from cvelistv5 – Published: 2026-07-22 19:22 – Updated: 2026-07-23 14:25

Title

A user with read access can cause a DoS by executing a specifically crafted query to consume a large amount of RAM

Summary

Using expressions that generate large arrays it is possible to craft a query that creates very large intermediate objects in memory, causing the server to crash with OOM error.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-23 14:25 UTC

CWE

CWE-1325 - Improperly Controlled Sequential Memory Allocation

Assigner

mongodb mitre root

References

1 reference

URL	Tags
https://jira.mongodb.org/browse/SERVER-124355

Impacted products

1 product

Vendor	Product	Version
MongoDB	MongoDB Server	Affected: 8.0 , < 8.0.28 (semver) Affected: 8.3.0 , < 8.3.7 (semver)

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JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2026-29728

CVE-2026-13056 (GCVE-0-2026-13056)

Tags

Sightings

Nomenclature

Related by attack behaviour