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CVE-2026-59155— Nezha Monitoring: DDNS and Notification credential exposure via unredacted list API

Quick assessment

Affected
nezhahq nezha
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.

nezha是nezhahq组织的一款自托管、轻量级的服务器和网站监控及运维工具。 nezhahq nezha 2.2.5之前版本存在日志信息泄露漏洞，该漏洞源于GET /api/v1/ddns和GET /api/v1/notification端点返回完整资源对象，包括明文第三方API凭据，可能导致已验证身份的管理员或具有相应权限的令牌接收存储的凭据，造成信息泄露。

AI Predicted 7.5 Difficulty: Easy EPSS 0.48% · P39

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
nezhahq nezha < 2.2.5 affected
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I. Basic Information for CVE-2026-59155

Vulnerability Information
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Vulnerability Title
Nezha Monitoring: DDNS and Notification credential exposure via unredacted list API
Source: CVE Program / CVE List V5
Vulnerability Description
Nezha Monitoring is a self-hostable, lightweight, servers and websites monitoring and O&M tool. Prior to 2.2.5, the GET /api/v1/ddns and GET /api/v1/notification endpoints return full resource objects including plaintext third-party API credentials, including Cloudflare API tokens, TencentCloud SecretKeys, Slack, Discord, and Telegram webhook URLs with embedded bot tokens, and Authorization header values, without any field-level redaction. Any authenticated admin or PAT with nezha:ddns:read or nezha:notification:read scope can receive stored credentials through the listDDNS and listNotification handlers in a single API response. This issue is fixed in version 2.2.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
nezhahq nezha 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
nezha是nezhahq组织的一款自托管、轻量级的服务器和网站监控及运维工具。 nezhahq nezha 2.2.5之前版本存在日志信息泄露漏洞，该漏洞源于GET /api/v1/ddns和GET /api/v1/notification端点返回完整资源对象，包括明文第三方API凭据，可能导致已验证身份的管理员或具有相应权限的令牌接收存储的凭据，造成信息泄露。
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
nezhahq nezha < 2.2.5 -

II. Public POCs for CVE-2026-59155

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III. Intelligence Information for CVE-2026-59155

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Patches & Fixes for CVE-2026-59155 (1)

Vendor Advisories for CVE-2026-59155 (1)

Vendor Pages for CVE-2026-59155 (1)

IV. Related Vulnerabilities

Same product: nezha
Same vendor: nezhahq
Same weakness: CWE-200

V. Comments for CVE-2026-59155

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