CVE-2026-93426

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

HIGH
8.5
CVSS Score
Published: September 17, 2026 at 09:19 PM UTC
Updated: September 22, 2026 at 08:41 PM UTC
1 product affected across 1 vendorSigNoz

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Severity
HIGH8.5
Exploit prediction
EPSS 0.5%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.87.0 ≤ v < 0.142.00.87.0
Vendor states this is fixed in 0.142.0 (unaffected)

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-89

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