CVE-2026-59155CWE-200

Nezha Monitoring: DDNS and Notification credential exposure via unredacted list API

Medium · published July 10, 2026

CVSS v4.0
6.9
EPSS
0%
Percentile
40.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
6.9 · MEDIUM
Vector
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
EPSS
0.00483 · 40.7th percentile
Weakness
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
Published
2026-07-10T21:31Z
EPSS history
Timeline
  • 10 JUL 21:31Z
    Nezha Monitoring: DDNS and Notification credential exposure via unredacted list API
    cvelistv5