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CVE-2026-16551— Denial-of-Service in OpenCanary's MongoDB module

Quick assessment

Affected
Thinkst Applied Research OpenCanary
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.

Thinkst Applied Research OpenCanary是Thinkst Applied Research团队的一款伪装成常见服务的网络威胁诱捕检测工具。 Thinkst Applied Research OpenCanary 0.9.8版本存在安全漏洞，该漏洞源于MongoDB模块过度分配，可能导致拒绝服务攻击。

AI Predicted 5.3 Difficulty: Moderate EPSS 0.43% · P35

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 2

VendorProduct Version RangeStatus
Thinkst Applied Research OpenCanary 0.9.8 affected
0.9.9 unaffected
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I. Basic Information for CVE-2026-16551

Vulnerability Information
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Vulnerability Title
Denial-of-Service in OpenCanary's MongoDB module
Source: CVE Program / CVE List V5
Vulnerability Description
Denial-of-Service in Thinkst Applied Research OpenCanary (MongoDB module) allows Excessive Allocation. This issue affects OpenCanary 0.9.8 only.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/S:N
Source: CVE Program / CVE List V5
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: CVE Program / CVE List V5
Vulnerability Title
Thinkst Applied Research OpenCanary 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Thinkst Applied Research OpenCanary是Thinkst Applied Research团队的一款伪装成常见服务的网络威胁诱捕检测工具。 Thinkst Applied Research OpenCanary 0.9.8版本存在安全漏洞，该漏洞源于MongoDB模块过度分配，可能导致拒绝服务攻击。
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
Thinkst Applied Research OpenCanary 0.9.8 -

II. Public POCs for CVE-2026-16551

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III. Intelligence Information for CVE-2026-16551

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Vendor Advisories for CVE-2026-16551 (1)

IV. Related Vulnerabilities

Same product: OpenCanary
Same vendor: Thinkst Applied Research
Same weakness: CWE-835

V. Comments for CVE-2026-16551

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