Description
SigNoz versions 0.87.0 before 0.142.0 fail to escape user-supplied telemetry field-key names in the v5 query_range API, allowing authenticated users to inject SQL. Attackers with Viewer role or higher can embed backticks and quotes in field names to break out of identifiers and string literals, executing arbitrary ClickHouse SQL to read system tables and exfiltrate data.
References10
- github.com/SigNoz/signoz
- github.com/SigNoz/signoz/blob/v0.141.1/pkg/apiserver/signozapis…
- github.com/SigNoz/signoz/blob/v0.141.1/pkg/querybuilder/fallbac…
- github.com/SigNoz/signoz/blob/v0.141.1/pkg/telemetrymetadata/fi…
- github.com/SigNoz/signoz/commit/8e00c0405697659bd4994a5de446cf3…
- github.com/SigNoz/signoz/commit/9c886be12015c43a1465af3532b3c3a…
- github.com/SigNoz/signoz/releases/tag/v0.142.0
- github.com/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc
- www.vulncheck.com/advisories/signoz-0.87.0-before-0.142.0-sql-i…
- github.com/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc
Metrics
- CVSS 3.1
-
8.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N - CVSS 4.0
-
8.4
HIGH
Score source: CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS — exploit probability
- 0% percentile: 43 · as of 8 November 2026
- CWE
- CWE-89
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.