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TI-2026-75134 Aliases CVE-2026-111387

Information disclosure in Nezha DDNS list endpoint exposes webhook tokens

Priority LOW 31CWE-212Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

Nezha from 2.2.5 before 2.3.15 has an information disclosure flaw in its DDNS list endpoint. The listDDNS function omits redaction of WebhookURL and WebhookRequestBody, so it returns sensitive data in cleartext (CWE-212). An authenticated user with read access to DDNS data, such as an admin or a personal access token with the nezha:ddns:read scope, can call GET /api/v1/ddns to read third-party credentials embedded in every user's DDNS webhook profiles.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Nezha from 2.2.5 before 2.3.15 contains an information disclosure vulnerability that allows authenticated users to retrieve third-party credentials because listDDNS omits WebhookURL and WebhookRequestBody redaction. Admins or PATs with nezha:ddns:read scope can call GET /api/v1/ddns to read cleartext tokens embedded in every user's DDNS webhook profiles.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00264 18th percentileScored 2026-11-07
Fix Fixed nezha (nezhahq): 2.3.15

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nezhahqnezha2.2.5 to before 2.3.152.3.15Patch availableCNA
  • nezha Vendornezhahq Affected 2.2.5 to before 2.3.15 Fixed in 2.3.15 Patch available CNA

Remediation

Upgrade Nezha to version 2.3.15 or later. The sources list no fixed version for Nezha other than 2.3.15.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA nezha (nezhahq) Fixed in 2.3.15

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    nezhahq nezha 2.3.15

    5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-75131 Memory exhaustion in Nezha file manager WebSocket endpointPriority MEDIUM 64
    • TI-2026-75130 Nezha WebSocket transfer endpoint flaw enables denial of servicePriority MEDIUM 64
    • TI-2026-75132 Host header injection in Nezha MCP transfer toolsPriority MEDIUM 61
    Show all 5 records →

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111387
  2. 2026-10-16 Priority changed: MEDIUM → LOW
  3. 2026-10-16 CISA SSVC decision points changed

References

Patch 2

Advisory 1

  • TI-2026-65123 Nezha through 2.2.3 Host Header Injection via OAuth2 redirect_uri CVSS 4.0CRITICAL 9.3
  • TI-2026-34341 Nezha Monitoring: RoleMember can run shell on every server (cross-tenant RCE) via POST /api/v1/cron CVSS 3.1CRITICAL 9.9
  • TI-2026-34342 Nezha Monitoring: RoleMember-reachable SSRF with full response-body reflection via POST /api/v1/notification CVSS 3.1HIGH 7.7
  • TI-2026-38597 Nezha Monitoring: OAuth2 Redirect URL — Host Header Injection CVSS 3.1MEDIUM 6.8
  • TI-2026-75131 Memory exhaustion in Nezha file manager WebSocket endpoint CVSS 4.0HIGH 7.1
  • TI-2026-75130 Nezha WebSocket transfer endpoint flaw enables denial of service CVSS 4.0HIGH 7.1
See all 29 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences