CVE-2026-93426
High
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.
SeverityHigh
CVSS8.5
Exploit probability—
ProductSignoz
PublishedSep 17, 2026
First seenSep 17, 2026
Weakness typeCWE-89SQL injection
How to fix
Update
- SigNoz signoz0.142.0 or later
Patches
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| SigNoz signoz | 0.87.0 ≤ v < 0.142.0 | 0.142.0 |
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