CVE-2026-93426

HIGHPre-NVD 8.58.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5%, top 60% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Elevated
8.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.5
EG Score
8.5(medium)
EG Risk
54(Track)
EG Risk 54/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity85% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
40%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 22, 2026

Advisory Details (8)

Auto-updated Sep 17, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
generic

SigNoz 0.87.0 before 0.142.0 - SQL Injection in v5 Query Builder Field Key Names | Advisories | VulnCheck

https://www.vulncheck.com/advisories/signoz-0.87.0-before-0.142.0-sql-injection-in-v5-query-builder-field-key-names
generic

GitHub - SigNoz/signoz: SigNoz is an open-source, OpenTelemetry-native observability platform for your team and their AI agents. Get logs, metrics, and traces in one tool with features like APM, distributed tracing, log management, infra monitoring, etc. Combined with SigNoz MCP and a native AI teammate (in SigNoz Cloud) it helps you build more resilient apps. · GitHub

https://github.com/SigNoz/signoz
generic

signoz/pkg/apiserver/signozapiserver/querier.go at v0.141.1 · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/apiserver/signozapiserver/querier.go#L26
generic

signoz/pkg/telemetrymetadata/field_mapper.go at v0.141.1 · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/telemetrymetadata/field_mapper.go#L79-L87
generic

signoz/pkg/querybuilder/fallback_expr.go at v0.141.1 · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/blob/v0.141.1/pkg/querybuilder/fallback_expr.go#L16-L22
github_release Patch Available

v0.142.0

Patch available: SigNoz/signoz v0.142.0

https://github.com/SigNoz/signoz/releases/tag/v0.142.0
github_commit

commit 8e00c0405697 (SigNoz/signoz)

Fix landed in SigNoz/signoz commit 8e00c0405697 — awaiting tagged release

https://github.com/SigNoz/signoz/commit/8e00c0405697659bd4994a5de446cf3028c0f76d
github Patch Available🟡 PoC Available

Authenticated ClickHouse SQL injection via v5 querier field key names · Advisory · SigNoz/signoz · GitHub

https://github.com/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 14× in last 7d / 17× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-24 18:03 UTCEG score recompute
  2. 2026-09-24 14:04 UTCEPSS rescore
  3. 2026-09-23 19:15 UTCEG score recompute
  4. 2026-09-23 17:54 UTCEPSS rescore
  5. 2026-09-22 20:34 UTCEG score recompute
  6. 2026-09-22 16:01 UTCEPSS rescore
  7. 2026-09-22 04:18 UTCEG score recompute
  8. 2026-09-21 21:09 UTCEPSS rescore
  9. 2026-09-21 05:25 UTCEG score recompute
  10. 2026-09-20 20:16 UTCEPSS rescore
  11. 2026-09-19 19:17 UTCEG score recompute
  12. 2026-09-18 20:34 UTCEG score recompute
  13. 2026-09-18 20:10 UTCEG score recompute
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-17 22:25 UTCEG score recompute
  16. 2026-09-17 21:24 UTCEG score recompute
  17. 2026-09-17 21:24 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93426?
CVE-2026-93426 is a high vulnerability published on September 17, 2026. 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,…
When was CVE-2026-93426 disclosed?
CVE-2026-93426 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93426 actively exploited?
CVE-2026-93426 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.0% of all scored CVEs.
What is the CVSS score of CVE-2026-93426?
CVE-2026-93426 has a CVSS v3 base score of 8.5 (NVD).
How do I remediate CVE-2026-93426?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93426, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-93426

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