Vulnerability · Published Oct 16, 2026 · Assigned by VulnCheck
CVE-2026-111386Nezha 1.7.0 before 2.3.15 Cross-Tenant Server-ID Enumeration via getServerConfig
Medium 4.3
In plain English
A medium-severity security flaw in nezha from nezhahq. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 11% of all known vulnerabilities).
Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)0.2%top 88.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Nezha from 1.7.0 before 2.3.15 contains an information disclosure vulnerability that allows authenticated members to enumerate other tenants' server IDs through differential responses. Attackers can sweep sequential IDs against getServerConfig and setServerConfig, distinguishing 'permission denied' from success payloads to map other users' servers.
Affected products (as reported)
Weakness: CWE-204 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
References
- GitHub Security Advisory (GHSA-228w-p4h4-6rvw) vendor-advisory
- Patch Commit patch
- VulnCheck Advisory: Nezha 1.7.0 before 2.3.15 Cross-Tenant Server-ID Enumeration via getServerConfig third-party-advisory