All vulnerabilities
CVE-2026-111386GHSA-228w-p4h4-6rvw

Nezha 1.7.0 before 2.3.15 Cross-Tenant Server-ID Enumeration via getServerConfig

nezhahq nezha
Open in ThreatlineRecord JSON
CVSS
5.3Medium
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 16 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.21%Chance of exploitation activity in the next 30 days, higher than 10% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in2.3.15Fixed versionCVE List
Published16 Oct 2026Updated 16 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

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.

Text from CVE List

Affected versions 2

  • nezhaaffected: 1.7.0 before 2.3.15CVE List
  • nezhaunaffected: 2.3.15CVE List

References 3