CVE-2026-93426 json
SigNoz 0.87.0 before 0.142.0 - SQL Injection in v5 Query Builder Field Key Names
published last mo. modified last mo. also EUVD-2026-82493 , GHSA-q3h7-gpc9-2rxc
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository SigNoz/signoz. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 8.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- SigNoz signoz 0.142.0
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- Exploitation
- Proof of concept is public
- Automatable
- no
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- github.com https://github.com/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.4 | 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 |
| CNA | 3.1 | 8.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N |
| CNA | 4.0 | 8.4 | 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 |
Affected products
- SigNoz signoz
Classification
- Weakness
-
- CWE-89 Improper Neutralization of Special Elements used in an SQL Command
References
-
github.com
/SigNoz/signoz/commit/8e00c0405697659bd4994a5de446cf3028c0f76d
patch
-
github.com
/SigNoz/signoz/commit/9c886be12015c43a1465af3532b3c3afbec6bebc
patch
-
github.com
/SigNoz/signoz/security/advisories/GHSA-q3h7-gpc9-2rxc
vendor-advisory, exploit, advisory
-
github.com
/SigNoz/signoz/releases/tag/v0.142.0
release-notes
-
github.com
/SigNoz/signoz/blob/v0.141.1/pkg/querybuilder/fallback_expr.go#L16-L22
technical-description
-
github.com
/SigNoz/signoz/blob/v0.141.1/pkg/telemetrymetadata/field_mapper.go#L79-L87
technical-description
-
github.com
/SigNoz/signoz/blob/v0.141.1/pkg/apiserver/signozapiserver/querier.go#L26
technical-description
-
github.com
/SigNoz/signoz
product
-
vulncheck.com
/advisories/signoz-0.87.0-before-0.142.0-sql-injection-in-v5-query-builder-field-key-names
third-party-advisory
Sources
- CVE List CVE-2026-93426
- NVD CVE-2026-93426
- Maintainer advisory GHSA-q3h7-gpc9-2rxc
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of SigNoz/signoz published their own advisory on GitHub. Reviewed sources take precedence over it.