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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.

PUBLISHED Reserved 2026-07-02 | Published 2026-07-10 | Updated 2026-07-13 | Assigner GitHub_M




MEDIUM: 6.9CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Product status

< 2.2.5
affected

References

github.com/.../nezha/security/advisories/GHSA-ww5p-j6cj-6mqq exploit

github.com/.../nezha/security/advisories/GHSA-ww5p-j6cj-6mqq

github.com/...ommit/39d398066d8c644fe452f74704e34ada6c7ab61e

github.com/nezhahq/nezha/releases/tag/v2.2.5

cve.org (CVE-2026-59155)

nvd.nist.gov (CVE-2026-59155)

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