High 8.5Published Sep 17, 2026

CVE-2026-93426SigNoz 0.87.0 before 0.142.0 - SQL Injection in v5 Query Builder Field Key Names

Updated under an hour ago (Oct 27, 2026, 4:30 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 8.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Weakness (CWE): CWE-89
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Awaiting Analysis
Record last updated: Sep 18, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

SigNoz signoz signoz:signoz (from the name)	from 0.87.0 before 0.142.0; 0.142.0 not affected	CNA record

References

References

https://github.com/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc	vendor-advisory
https://github.com/SigNoz/signoz/commit/8e00c0405697659bd4994a5de446cf3028c0f76d	patch
https://github.com/SigNoz/signoz/commit/9c886be12015c43a1465af3532b3c3afbec6bebc	patch
https://github.com/SigNoz/signoz/releases/tag/v0.142.0	release-notes
https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/querybuilder/fallback_expr.go#L16-L22	technical-description
https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/telemetrymetadata/field_mapper.go#L79-L87	technical-description
https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/apiserver/signozapiserver/querier.go#L26	technical-description
https://github.com/SigNoz/signoz	product
https://www.vulncheck.com/advisories/signoz-0.87.0-before-0.142.0-sql-injection-in-v5-query-builder-field-key-names	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.